From 56669168bf1e912aafedf32955a1d4dd263699d8 Mon Sep 17 00:00:00 2001
From: Antoine Roy-Gobeil <antoine@plot.ly>
Date: Mon, 26 Nov 2018 19:23:28 -0500
Subject: [PATCH 01/24] initial support for EMF file format thanks to Inkscape

---
 README.md                               |  27 ++-
 bin/args.js                             |   6 +
 bin/graph.js                            |   3 +-
 bin/serve.js                            |   3 +-
 package-lock.json                       | 247 ++++++++++++------------
 package.json                            |   1 +
 src/component/plotly-graph/constants.js |   3 +-
 src/component/plotly-graph/convert.js   |  25 +++
 src/component/plotly-graph/render.js    |   9 +-
 src/util/inkscape.js                    | 151 +++++++++++++++
 test/unit/inkscape_test.js              |  80 ++++++++
 11 files changed, 419 insertions(+), 136 deletions(-)
 create mode 100644 src/util/inkscape.js
 create mode 100644 test/unit/inkscape_test.js

diff --git a/README.md b/README.md
index 29811839..4a47fa6e 100644
--- a/README.md
+++ b/README.md
@@ -36,7 +36,7 @@ $ npm install -g electron@1.8.4 orca
 
 which makes the `orca` executable available in your path.
 
-### Method 3: Standalone binaries 
+### Method 3: Standalone binaries
 
 Alternatively, you can download the standalone Orca binaries corresponding to
 your operating system from the
@@ -52,7 +52,7 @@ your operating system from the
 - A password dialog will appear asking for permission to add orca to your system `PATH`.
 - Enter you password and click _OK_.
 - This should open an _Installation Succeeded_ window.
-- Open a new terminal and verify that the orca executable is available on your `PATH`. 
+- Open a new terminal and verify that the orca executable is available on your `PATH`.
 
 ```
 $ which orca
@@ -100,7 +100,7 @@ to the AppImage.
 $ ln -s /path/to/orca-X.Y.Z-x86_64.AppImage /somewhere/on/PATH/orca
 ```
 
-- Open a new terminal and verify that the orca executable is available on your `PATH`. 
+- Open a new terminal and verify that the orca executable is available on your `PATH`.
 
 ```
 $ which orca
@@ -112,7 +112,7 @@ Plotly's image-exporting utilities
   Usage: orca [--version] [--help] <command> [<args>]
   ...
 ```
- 
+
 ##### Linux Troubleshooting: Cannot open shared object
 The Electron runtime depends a several common system libraries. These
 libraries are pre-installed in most desktop Linux distributions
@@ -157,7 +157,7 @@ Name this shell script `orca` and place it somewhere or your system `PATH`.
  - How to add directory to system path in Linux: https://www.computerhope.com/issues/ch001647.htm
  - AppImage: https://appimage.org/
  - Xvfb: https://en.wikipedia.org/wiki/Xvfb
- 
+
 ## Quick start
 
 From the command line:
@@ -286,14 +286,14 @@ Plotly's image server is dockerized and deployed here. See the `deployment/`
 
 ## System dependencies
 
-**If you don't care about exporting EPS you can skip this section.**
+**If you don't care about exporting EPS or EMF you can skip this section.**
 
-The environment you're installing this into may require Poppler for EPS exports.
+The environment you're installing this into may require Poppler for EPS exports and Inkscape for EMF exports.
 
 #### Poppler installation via Aptitude (used by some \*nix/BSD, e.g. Ubuntu)
 
 ```
-$ apt-get poppler-utils (requires `sudo` or root privileges)
+$ apt-get install poppler-utils (requires `sudo` or root privileges)
 ```
 
 #### Poppler installation via Homebrew (third-party package manager for Mac OS X)
@@ -302,6 +302,17 @@ $ apt-get poppler-utils (requires `sudo` or root privileges)
 $ brew install poppler
 ```
 
+#### Inkscape installation via Aptitude (used by some \*nix/BSD, e.g. Ubuntu)
+
+```
+$ apt-get install inkscape (requires `sudo` or root privileges)
+```
+
+#### Inkscape installation via Homebrew (third-party package manager for Mac OS X)
+
+```
+$ brew install inkscape
+```
 ## Contributing
 
 See
diff --git a/bin/args.js b/bin/args.js
index 136a1a6a..6fc87bb2 100644
--- a/bin/args.js
+++ b/bin/args.js
@@ -28,6 +28,12 @@ exports.PLOTLYJS_OPTS_META = [{
   alias: ['MathJax'],
   dflt: '',
   description: `Sets path to MathJax files. Required to export LaTeX characters.`
+}, {
+  name: 'inkscape',
+  type: 'string',
+  alias: ['Inkscape'],
+  dflt: '',
+  description: `Sets path to Inkscape executable. Required to export WMF and EMF formats.`
 }, {
   name: 'safe-mode',
   type: 'boolean',
diff --git a/bin/graph.js b/bin/graph.js
index fcb2728c..70c14fe6 100644
--- a/bin/graph.js
+++ b/bin/graph.js
@@ -145,7 +145,8 @@ function main (args) {
           scale: opts.scale,
           width: opts.width,
           height: opts.height,
-          safeMode: opts.safeMode
+          safeMode: opts.safeMode,
+          inkscape: opts.inkscape
         }
       }
     })
diff --git a/bin/serve.js b/bin/serve.js
index aad32b11..f2112002 100755
--- a/bin/serve.js
+++ b/bin/serve.js
@@ -73,7 +73,8 @@ function main (args) {
     mapboxAccessToken: opts['mapbox-access-token'],
     mathjax: opts.mathjax,
     topojson: opts.topojson,
-    safeMode: opts.safeMode
+    safeMode: opts.safeMode,
+    inkscape: opts.inkscape
   }
 
   function launch () {
diff --git a/package-lock.json b/package-lock.json
index bdff6b87..a1c01d36 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -143,7 +143,7 @@
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-          "integrity": "sha512-nOqH59deCq9SRHlxq1Aw85Jnt4w6KvLKqWVik6oA9ZklXLNIOlqg4F2yrT1MVaTjAqvVwdfeZ7w7aCvJD7ugkw==",
+          "integrity": "sha1-q5Pyeo3BPSjKyBXEYhQ6bZASrp4=",
           "dev": true,
           "requires": {
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@@ -164,7 +164,7 @@
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       "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-3.1.0.tgz",
-      "integrity": "sha512-UgAb8H9D41AQnu/PbWlCofQVcnV4Gs2bBJi9eZPxfU/hgglFh3SMDMENRIqdr7H6XFnXdoknctFByVsCOotTVw==",
+      "integrity": "sha1-9zIHu4EgfXX9bIPxJa8m7qN4yjA=",
       "dev": true
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@@ -176,7 +176,7 @@
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       "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
-      "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
+      "integrity": "sha1-QfuyAkPlCxK+DwS43tvwdSDOhB0=",
       "dev": true,
       "requires": {
         "color-convert": "^1.9.0"
@@ -369,7 +369,7 @@
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-      "integrity": "sha512-jxwzQpLQjSmWXgwaCZE9Nz+glAG01yF1QnWgbhGwHI5A6FRIEY6IVqtHhIepHqI7/kyEyQEagBC5mBEFlIYvdg==",
+      "integrity": "sha1-jSR136tVO7M+d7VOWeiAu4ziMTY=",
       "requires": {
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@@ -382,7 +382,7 @@
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-      "integrity": "sha512-fNEiL2+AZt6AlAw/29Cr0UDe4sRAHCpEHh54WMz+Bb7QfNcFw4h3loofyJpLeQs4Yx7yuqu/2dLgM5hKOs6HlQ==",
+      "integrity": "sha1-skWiPKcZMAROxT+kaqAKPofGphA=",
       "dev": true,
       "requires": {
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@@ -391,7 +391,7 @@
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+      "integrity": "sha1-i9iwJLDsmxwBzMua+dspvXF9+vM=",
       "dev": true
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@@ -413,7 +413,7 @@
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-      "integrity": "sha512-ReZxvNHIOv88FlT7rxcXIIC0fPt4KZqZbOlivyWtXLt8ESx84zd3kMC6iK5jVeS2qt+g7ftS7ye4fi06X5rtRQ=="
+      "integrity": "sha1-8OAD2cqef1nHpQiUXXsu+aBKVC8="
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@@ -486,13 +486,13 @@
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+      "integrity": "sha1-AXgUDb57e7Z9x0iSrOWbwCR/BvA=",
       "dev": true
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+      "integrity": "sha1-oWCRFxcQPAdBDO9j71Gzl8Alr5w=",
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@@ -566,7 +566,7 @@
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+      "integrity": "sha1-VcbDmouljZxhrSLNh3Uy3rZlogs=",
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@@ -625,7 +625,7 @@
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+          "integrity": "sha1-q5Pyeo3BPSjKyBXEYhQ6bZASrp4=",
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           "requires": {
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+      "integrity": "sha1-iQ3ZDZI6hz4I4Q5f1RpX5bfM4Ow=",
       "dev": true,
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+      "integrity": "sha1-vX3CauKXLQ7aJTvgYdupkjScGfA=",
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@@ -702,7 +702,7 @@
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+      "integrity": "sha1-MnE7wCj3XAL9txDXx7zsHyxgcO8=",
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@@ -852,7 +852,7 @@
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@@ -1149,7 +1149,7 @@
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+      "integrity": "sha1-9aC82Qyk5k4Ii3EPqN2mQK6kiE8=",
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+      "integrity": "sha1-rWAmnCyFb4wpnixMwN5FVpFAVsY=",
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+      "integrity": "sha1-gAwN0eCov7yVg1wgKtIg/jF+WhI=",
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       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/tmatch/-/tmatch-4.0.0.tgz",
-      "integrity": "sha512-Ynn2Gsp+oCvYScQXeV+cCs7citRDilq0qDXA6tuvFwDgiYyyaq7D5vKUlAPezzZR5NDobc/QMeN6e5guOYmvxg==",
+      "integrity": "sha1-uheAB/ML9qcPN8ZD/KUEX7L4xEg=",
       "dev": true
     },
     "tmp": {
       "version": "0.0.33",
       "resolved": "https://registry.npmjs.org/tmp/-/tmp-0.0.33.tgz",
-      "integrity": "sha512-jRCJlojKnZ3addtTOjdIqoRuPEKBvNXcGYqzO6zWZX8KfKEpnGY5jfggJQ3EjKuu8D4bJRr0y+cYJFmYbImXGw==",
+      "integrity": "sha1-bTQzWIl2jSGyvNoKonfO07G/rfk=",
       "dev": true,
       "requires": {
         "os-tmpdir": "~1.0.2"
@@ -7867,13 +7872,13 @@
     "to-buffer": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/to-buffer/-/to-buffer-1.1.1.tgz",
-      "integrity": "sha512-lx9B5iv7msuFYE3dytT+KE5tap+rNYw+K4jVkb9R/asAb+pbBSM17jtunHplhBe6RRJdZx3Pn2Jph24O32mOVg==",
+      "integrity": "sha1-STvUj2LXxD/N7TE6A9ytsuEhOoA=",
       "dev": true
     },
     "tough-cookie": {
       "version": "2.4.3",
       "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.4.3.tgz",
-      "integrity": "sha512-Q5srk/4vDM54WJsJio3XNn6K2sCG+CQ8G5Wz6bZhRZoAe/+TxjWB/GlFAnYEbkYVlON9FMk/fE3h2RLpPXo4lQ==",
+      "integrity": "sha1-U/Nto/R3g7CSWvoG/587FlKA94E=",
       "requires": {
         "psl": "^1.1.24",
         "punycode": "^1.4.1"
@@ -7932,7 +7937,7 @@
     "type-detect": {
       "version": "4.0.8",
       "resolved": "https://registry.npmjs.org/type-detect/-/type-detect-4.0.8.tgz",
-      "integrity": "sha512-0fr/mIH1dlO+x7TlcMy+bIDqKPsw/70tVyeHW787goQjhmqaZe10uwLujubK9q9Lg6Fiho1KUKDYz0Z7k7g5/g==",
+      "integrity": "sha1-dkb7XxiHHPu3dJ5pvTmmOI63RQw=",
       "dev": true
     },
     "typedarray": {
@@ -7981,7 +7986,7 @@
     "update-notifier": {
       "version": "2.5.0",
       "resolved": "https://registry.npmjs.org/update-notifier/-/update-notifier-2.5.0.tgz",
-      "integrity": "sha512-gwMdhgJHGuj/+wHJJs9e6PcCszpxR1b236igrOkUofGhqJuG+amlIKwApH1IW1WWl7ovZxsX49lMBWLxSdm5Dw==",
+      "integrity": "sha1-0HRFk+E/Fh5AassdlAi3LK0Ir/Y=",
       "dev": true,
       "requires": {
         "boxen": "^1.2.1",
@@ -8097,7 +8102,7 @@
     "uuid": {
       "version": "3.3.2",
       "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.3.2.tgz",
-      "integrity": "sha512-yXJmeNaw3DnnKAOKJE51sL/ZaYfWJRl1pK9dr19YFCu0ObS231AB1/LbqTKRAQ5kw8A90rA6fr4riOUpTZvQZA=="
+      "integrity": "sha1-G0r0lV6zB3xQHCOHL8ZROBFYcTE="
     },
     "validate-npm-package-license": {
       "version": "3.0.1",
@@ -8122,7 +8127,7 @@
     "wdio-dot-reporter": {
       "version": "0.0.10",
       "resolved": "https://registry.npmjs.org/wdio-dot-reporter/-/wdio-dot-reporter-0.0.10.tgz",
-      "integrity": "sha512-A0TCk2JdZEn3M1DSG9YYbNRcGdx/YRw19lTiRpgwzH4qqWkO/oRDZRmi3Snn4L2j54KKTfPalBhlOtc8fojVgg==",
+      "integrity": "sha1-+s+3ycWYQUmVH1nLw80HUhAc8OA=",
       "dev": true
     },
     "webdriverio": {
@@ -8216,7 +8221,7 @@
         "string-width": {
           "version": "2.1.1",
           "resolved": "https://registry.npmjs.org/string-width/-/string-width-2.1.1.tgz",
-          "integrity": "sha512-nOqH59deCq9SRHlxq1Aw85Jnt4w6KvLKqWVik6oA9ZklXLNIOlqg4F2yrT1MVaTjAqvVwdfeZ7w7aCvJD7ugkw==",
+          "integrity": "sha1-q5Pyeo3BPSjKyBXEYhQ6bZASrp4=",
           "dev": true,
           "requires": {
             "is-fullwidth-code-point": "^2.0.0",
@@ -8284,7 +8289,7 @@
     "write-file-atomic": {
       "version": "2.3.0",
       "resolved": "https://registry.npmjs.org/write-file-atomic/-/write-file-atomic-2.3.0.tgz",
-      "integrity": "sha512-xuPeK4OdjWqtfi59ylvVL0Yn35SF3zgcAcv7rBPFHVaEapaDr4GdGgm3j7ckTwH9wHL7fGmgfAnb0+THrHb8tA==",
+      "integrity": "sha1-H/YVdcLipOjlENb6TiQ8zhg5mas=",
       "dev": true,
       "requires": {
         "graceful-fs": "^4.1.11",
@@ -8377,7 +8382,7 @@
         "string-width": {
           "version": "2.1.1",
           "resolved": "https://registry.npmjs.org/string-width/-/string-width-2.1.1.tgz",
-          "integrity": "sha512-nOqH59deCq9SRHlxq1Aw85Jnt4w6KvLKqWVik6oA9ZklXLNIOlqg4F2yrT1MVaTjAqvVwdfeZ7w7aCvJD7ugkw==",
+          "integrity": "sha1-q5Pyeo3BPSjKyBXEYhQ6bZASrp4=",
           "dev": true,
           "requires": {
             "is-fullwidth-code-point": "^2.0.0",
diff --git a/package.json b/package.json
index 4ef0d019..f4521ffe 100644
--- a/package.json
+++ b/package.json
@@ -70,6 +70,7 @@
     "is-plain-obj": "^1.1.0",
     "is-url": "^1.2.4",
     "minimist": "^1.2.0",
+    "pngjs": "^3.3.3",
     "read-chunk": "^2.1.0",
     "request": "^2.88.0",
     "run-parallel": "^1.1.9",
diff --git a/src/component/plotly-graph/constants.js b/src/component/plotly-graph/constants.js
index 168ac77f..6b15d229 100644
--- a/src/component/plotly-graph/constants.js
+++ b/src/component/plotly-graph/constants.js
@@ -5,7 +5,8 @@ module.exports = {
     webp: 'image/webp',
     svg: 'image/svg+xml',
     pdf: 'application/pdf',
-    eps: 'application/postscript'
+    eps: 'application/postscript',
+    emf: 'image/emf'
   },
 
   statusMsg: {
diff --git a/src/component/plotly-graph/convert.js b/src/component/plotly-graph/convert.js
index 2dfc05c4..0e6505eb 100644
--- a/src/component/plotly-graph/convert.js
+++ b/src/component/plotly-graph/convert.js
@@ -1,4 +1,5 @@
 const Pdftops = require('../../util/pdftops')
+const Inkscape = require('../../util/inkscape')
 const cst = require('./constants')
 
 /** plotly-graph convert
@@ -55,6 +56,21 @@ function convert (info, opts, reply) {
     })
   }
 
+  const svg2emf = (svg, cb) => {
+    const inkscape = opts.inkscape instanceof Inkscape
+      ? opts.inkscape
+      : new Inkscape(opts.inkscape)
+
+    inkscape.svg2emf(svg, {id: info.id}, (err, emf) => {
+      if (err) {
+        errorCode = 530
+        result.error = err
+        return done()
+      }
+      cb(emf)
+    })
+  }
+
   switch (format) {
     case 'png':
     case 'jpeg':
@@ -84,6 +100,15 @@ function convert (info, opts, reply) {
         return done()
       })
       break
+    case 'emf':
+      svg2emf(imgData, (emf) => {
+        body = encoded
+          ? `data:${cst.contentFormat.emf};base64,${emf.toString('base64')}`
+          : Buffer.from(emf, 'base64')
+        bodyLength = body.length
+        return done()
+      })
+      break
   }
 }
 
diff --git a/src/component/plotly-graph/render.js b/src/component/plotly-graph/render.js
index 0979d178..b795e3e8 100644
--- a/src/component/plotly-graph/render.js
+++ b/src/component/plotly-graph/render.js
@@ -41,6 +41,7 @@ function render (info, opts, sendToMain) {
   }
 
   const PRINT_TO_PDF = (format === 'pdf' || format === 'eps')
+  const PRINT_TO_EMF = (format === 'emf')
 
   // stash `paper_bgcolor` here in order to set the pdf window bg color
   let bgColor
@@ -50,15 +51,15 @@ function render (info, opts, sendToMain) {
   }
 
   const imgOpts = {
-    format: PRINT_TO_PDF ? 'svg' : format,
+    format: (PRINT_TO_PDF || PRINT_TO_EMF) ? 'svg' : format,
     width: info.width,
     height: info.height,
     // only works as of plotly.js v1.31.0
     scale: info.scale,
     // return image data w/o the leading 'data:image' spec
-    imageDataOnly: !PRINT_TO_PDF && !encoded,
-    // blend jpeg background color as jpeg does not support transparency
-    setBackground: format === 'jpeg' ? 'opaque'
+    imageDataOnly: PRINT_TO_EMF || (!PRINT_TO_PDF && !encoded),
+    // blend (emf|jpeg) background color as (emf|jpeg) does not support transparency
+    setBackground: (format === 'jpeg' || format === 'emf') ? 'opaque'
       : PRINT_TO_PDF ? pdfBackground
         : ''
   }
diff --git a/src/util/inkscape.js b/src/util/inkscape.js
new file mode 100644
index 00000000..6aad6921
--- /dev/null
+++ b/src/util/inkscape.js
@@ -0,0 +1,151 @@
+const fs = require('fs')
+const path = require('path')
+const childProcess = require('child_process')
+const parallel = require('run-parallel')
+const series = require('run-series')
+const uuid = require('uuid/v4')
+const os = require('os')
+const PNG = require('pngjs').PNG
+
+const PATH_TO_BUILD = path.join(os.tmpdir(), 'orca-build')
+try {
+  fs.mkdirSync(PATH_TO_BUILD)
+} catch (e) {}
+
+const fullyTransparentColorbarRegexp = /<rect class="cbbg"(\s+\w+="[^"]+")*\s+style="[^"]*fill-opacity: 0;[^"]*"(\s+\w+="[^"]+")*\/>/g
+const fullyTransparentRectRegexp = /<rect class="bg"(\s+\w+="[^"]+")*\s+style="[^"]*stroke-opacity: 0;[^"]*fill-opacity: 0;[^"]*"(\s+\w+="[^"]+")*\/>/g
+const transparentFillRectRegexp = /<rect class="bg"(\s+\w+="[^"]+")*\s+style="[^"]*fill-opacity: 0;[^"]*"(\s+\w+="[^"]+")*\/>/g
+const transparentStrokeRectRegexp = /<rect class="bg"(\s+\w+="[^"]+")*\s+style="[^"]*stroke-opacity: 0;[^"]*"(\s+\w+="[^"]+")*\/>/g
+const imgRegexp = /<image\s+xmlns="http:\/\/www.w3.org\/2000\/svg"\s+xlink:href="data:image\/png;base64,([^"]*)"[^>]*>/
+const colorbarRegexp = /<rect class="cbfill"[^>]*\/>/
+const xlinkHrefDataImageRegexp = /xlink:href="data:image\/png;base64,([^"]*)"/
+
+/** Node wrapper for Inkscape
+ *
+ * $ apt-get install inkscape
+ * ... or on OS X:
+ * $ brew install inkscape
+ *
+ * See:
+ * - https://linux.die.net/man/1/inkscape
+ * - https://en.wikipedia.org/wiki/Inkscape
+ */
+class Inkscape {
+  constructor (pathToInkscape) {
+    this.cmdBase = pathToInkscape || 'inkscape'
+  }
+
+  /** Convert SVG to EMF
+   *
+   * @param {buffer} svg : svg data buffer
+   * @param {object} opts
+   *  - id {string}
+   * @param {function} cb
+   *  - err {null || error}
+   *  - result {buffer}
+   */
+  svg2emf (svg, opts, cb) {
+    const id = opts.id || uuid()
+    const inPath = path.join(PATH_TO_BUILD, id + '-svg')
+    const outPath = path.join(PATH_TO_BUILD, id + '-emf')
+    const cmd = `${this.cmdBase} --file ${inPath} --export-emf ${outPath}`
+
+    const destroyTmpFiles = (cb) => parallel([
+      (cb) => fs.unlink(inPath, cb),
+      (cb) => fs.unlink(outPath, cb)
+    ], cb)
+
+    svg = this.cleanSvg(svg)
+
+    series([
+      (cb) => fs.writeFile(inPath, svg, 'utf-8', cb),
+      (cb) => childProcess.exec(cmd, cb),
+      (cb) => fs.readFile(outPath, cb)
+    ], (err, result) => {
+      destroyTmpFiles(() => {
+        cb(err, result[2])
+      })
+    })
+  }
+
+  cleanSvg (svg) {
+    var bgColor = [255, 255, 255]
+
+    // Fix black legends by removing rect.legendtoggle
+    svg = svg.replace(/<rect class="legendtoggle"[^>]+>/g, '')
+
+    // Remove colorbar background if it's transparent
+
+    svg = svg.replace(fullyTransparentColorbarRegexp, '')
+    // Remove annotation's background if it's compleletely transparent
+    svg = svg.replace(fullyTransparentRectRegexp, '')
+
+    // Set fill color to background color if its opacity is 0
+    svg = svg.replace(transparentFillRectRegexp, function (match, p) {
+      return match.replace(/fill: [^;]*;/, `fill: rgb(${bgColor[0]},${bgColor[1]},${bgColor[2]});`)
+    })
+    // Set stroke color to background color if its opacity is 0
+    svg = svg.replace(transparentStrokeRectRegexp, function (match, p) {
+      return match.replace(/stroke: [^;]*;/, `stroke: rgb(${bgColor[0]},${bgColor[1]},${bgColor[2]});`)
+    })
+
+    // Fix black background in rasterized images
+    svg = svg.replace(imgRegexp, function (match, base64png) {
+      var pngBuffer = Buffer.from(base64png, 'base64')
+      var image = PNG.sync.read(pngBuffer)
+
+      for (var y = 0; y < image.height; y++) {
+        for (var x = 0; x < image.width; x++) {
+          var idx = (image.width * y + x) << 2
+
+          var alpha = image.data[idx + 3]
+          if (alpha < 255) {
+            // Manually do alpha composition (https://en.wikipedia.org/wiki/Alpha_compositing)
+            image.data[idx] = image.data[idx] * alpha / 255 + bgColor[0] * (1 - alpha / 255)
+            image.data[idx + 1] = image.data[idx + 1] * alpha / 255 + bgColor[1] * (1 - alpha / 255)
+            image.data[idx + 2] = image.data[idx + 2] * alpha / 255 + bgColor[2] * (1 - alpha / 255)
+
+            image.data[idx + 3] = 255
+          }
+        }
+      }
+      var pngOpaqueBuffer = PNG.sync.write(image)
+      return match.replace(xlinkHrefDataImageRegexp, `xlink:href="data:image/png;base64,${pngOpaqueBuffer.toString('base64')}"`)
+    })
+
+    // Inkscape doesn't convert well gradientUnits="objectBoundingBox" into EMF
+    svg.replace(colorbarRegexp, function (match) {
+      // var width = match.match(/width="(\d+)"/)[1]
+      var height = match.match(/height="(\d+)"/)[1]
+      var gradientId = match.match(/url\('#([^']*)'\)/)
+
+      if (gradientId) {
+        gradientId = gradientId[1]
+        var gradientIdRegexp = new RegExp(`<linearGradient[^>]*id="${gradientId}"[^>]*>`)
+        svg = svg.replace(gradientIdRegexp, function (m) {
+          return `<linearGradient gradientUnits="userSpaceOnUse" x1="0" x2="0" y1="${height}" y2="0" id="${gradientId}">`
+        })
+      }
+
+      return false
+    })
+
+    return svg
+  }
+
+  /** Is Inkscape installed?
+   * @return {boolean}
+   */
+  static isInkscapeInstalled () {
+    try {
+      childProcess.execSync(`${this.cmdBase} --version`, {
+        stdio: 'ignore'
+      })
+    } catch (e) {
+      return false
+    }
+    return true
+  }
+}
+
+module.exports = Inkscape
diff --git a/test/unit/inkscape_test.js b/test/unit/inkscape_test.js
new file mode 100644
index 00000000..1ccd27bd
--- /dev/null
+++ b/test/unit/inkscape_test.js
@@ -0,0 +1,80 @@
+const tap = require('tap')
+const sinon = require('sinon')
+const path = require('path')
+const fs = require('fs')
+const childProcess = require('child_process')
+const Inkscape = require('../../src/util/inkscape')
+
+const { paths, mocks } = require('../common')
+
+tap.test('inkscape.svg2emf', t => {
+  t.test('should convert svg to emf', t => {
+    const inkscape = new Inkscape()
+    const outPath = path.join(paths.build, 'inkscape-test.emf')
+
+    inkscape.svg2emf(mocks.svg, {}, (err, result) => {
+      if (err) t.fail(err)
+      t.type(result, Buffer)
+
+      fs.writeFile(outPath, result, (err) => {
+        if (err) t.fail(err)
+
+        const size = fs.statSync(outPath).size
+        t.ok(size > 9e4, 'min emf file size')
+        t.end()
+      })
+    })
+  })
+
+  t.test('should remove tmp files after conversion', t => {
+    const inkscape = new Inkscape()
+    const tmpOutPath = path.join(paths.build, 'tmp-emf')
+    const tmpSvgPath = path.join(paths.build, 'tmp-svg')
+
+    inkscape.svg2emf(mocks.svg, {id: 'tmp'}, (err, result) => {
+      if (err) t.fail(err)
+
+      t.type(result, Buffer)
+      t.notOk(fs.existsSync(tmpOutPath), 'clears tmp emf file')
+      t.notOk(fs.existsSync(tmpSvgPath), 'clears tmp svg file')
+      t.end()
+    })
+  })
+
+  t.test('should error out when inkscape command fails', t => {
+    const inkscape = new Inkscape('not gonna work')
+
+    const tmpOutPath = path.join(paths.build, 'tmp-emf')
+    const tmpSvgPath = path.join(paths.build, 'tmp-svg')
+
+    inkscape.svg2emf(mocks.svg, {id: 'tmp'}, (err) => {
+      t.throws(() => { throw err }, /Command failed/)
+      t.notOk(fs.existsSync(tmpOutPath), 'clears tmp emf file')
+      t.notOk(fs.existsSync(tmpSvgPath), 'clears tmp svg file')
+      t.end()
+    })
+  })
+
+  t.end()
+})
+
+tap.test('isInkscapeInstalled', t => {
+  t.afterEach((done) => {
+    childProcess.execSync.restore()
+    done()
+  })
+
+  t.test('should return true when binary execute correctly', t => {
+    sinon.stub(childProcess, 'execSync').returns(true)
+    t.ok(Inkscape.isInkscapeInstalled())
+    t.end()
+  })
+
+  t.test('should return false when binary does not execute correctly', t => {
+    sinon.stub(childProcess, 'execSync').throws()
+    t.notOk(Inkscape.isInkscapeInstalled())
+    t.end()
+  })
+
+  t.end()
+})

From e82327413a14e4fca3572b4ed8de5c37ab854b36 Mon Sep 17 00:00:00 2001
From: Antoine Roy-Gobeil <antoine@plot.ly>
Date: Mon, 26 Nov 2018 22:07:23 -0500
Subject: [PATCH 02/24] remove PATCH version from docker image name to get
 updates

---
 .circleci/config.yml | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/.circleci/config.yml b/.circleci/config.yml
index ae4f2df2..c2c9f463 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -83,16 +83,16 @@ jobs:
   test-node-v6:
     <<: *base
     docker:
-      - image: circleci/node:6.14.1-browsers
+      - image: circleci/node:6.14-browsers
 
   test-node-v8:
     <<: *base
     docker:
-      - image: circleci/node:8.11.1-browsers
+      - image: circleci/node:8.11-browsers
 
   docker-build-and-push:
     docker:
-      - image: circleci/node:8.11.1-browsers
+      - image: circleci/node:8.11-browsers
     steps:
       - setup_remote_docker:
           reusable: true
@@ -138,7 +138,7 @@ jobs:
 
   electron-pack-and-release:
     docker:
-      - image: circleci/node:8.11.1-browsers
+      - image: circleci/node:8.11-browsers
     steps:
       - restore_cache:
           key: v1-source-{{ .Branch }}-{{ .Revision }}

From 035ed22c2212a8def53ccf283c2f8615d69e31bd Mon Sep 17 00:00:00 2001
From: Antoine Roy-Gobeil <antoine@plot.ly>
Date: Tue, 27 Nov 2018 13:52:50 -0500
Subject: [PATCH 03/24] fix regular expression to match svg attributes with
 dash

---
 src/util/inkscape.js | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/src/util/inkscape.js b/src/util/inkscape.js
index 6aad6921..bb4ae844 100644
--- a/src/util/inkscape.js
+++ b/src/util/inkscape.js
@@ -12,12 +12,12 @@ try {
   fs.mkdirSync(PATH_TO_BUILD)
 } catch (e) {}
 
-const fullyTransparentColorbarRegexp = /<rect class="cbbg"(\s+\w+="[^"]+")*\s+style="[^"]*fill-opacity: 0;[^"]*"(\s+\w+="[^"]+")*\/>/g
-const fullyTransparentRectRegexp = /<rect class="bg"(\s+\w+="[^"]+")*\s+style="[^"]*stroke-opacity: 0;[^"]*fill-opacity: 0;[^"]*"(\s+\w+="[^"]+")*\/>/g
-const transparentFillRectRegexp = /<rect class="bg"(\s+\w+="[^"]+")*\s+style="[^"]*fill-opacity: 0;[^"]*"(\s+\w+="[^"]+")*\/>/g
-const transparentStrokeRectRegexp = /<rect class="bg"(\s+\w+="[^"]+")*\s+style="[^"]*stroke-opacity: 0;[^"]*"(\s+\w+="[^"]+")*\/>/g
+const fullyTransparentColorbarRegexp = /<rect class="cbbg"(\s+[-\w]+="[^"]+")*\s+style="[^"]*fill-opacity: 0;[^"]*"(\s+[-\w]+="[^"]+")*\/>/g
+const fullyTransparentRectRegexp = /<rect(\s+[-\w]+="[^"]+")*\s+style="[^"]*stroke-opacity: 0;[^"]*fill-opacity: 0;[^"]*"(\s+[-\w]+="[^"]+")*\/>/g
+const transparentFillRectRegexp = /<rect(\s+[-\w]+="[^"]+")*\s+style="[^"]*fill-opacity: 0;[^"]*"(\s+[-\w]+="[^"]+")*\/>/g
+const transparentStrokeRectRegexp = /<rect(\s+[-\w]+="[^"]+")*\s+style="[^"]*stroke-opacity: 0;[^"]*"(\s+[-\w]+="[^"]+")*\/>/g
 const imgRegexp = /<image\s+xmlns="http:\/\/www.w3.org\/2000\/svg"\s+xlink:href="data:image\/png;base64,([^"]*)"[^>]*>/
-const colorbarRegexp = /<rect class="cbfill"[^>]*\/>/
+const colorbarFillRegexp = /<rect class="cbfill"[^>]*\/>/
 const xlinkHrefDataImageRegexp = /xlink:href="data:image\/png;base64,([^"]*)"/
 
 /** Node wrapper for Inkscape
@@ -75,7 +75,6 @@ class Inkscape {
     svg = svg.replace(/<rect class="legendtoggle"[^>]+>/g, '')
 
     // Remove colorbar background if it's transparent
-
     svg = svg.replace(fullyTransparentColorbarRegexp, '')
     // Remove annotation's background if it's compleletely transparent
     svg = svg.replace(fullyTransparentRectRegexp, '')
@@ -114,7 +113,7 @@ class Inkscape {
     })
 
     // Inkscape doesn't convert well gradientUnits="objectBoundingBox" into EMF
-    svg.replace(colorbarRegexp, function (match) {
+    svg.replace(colorbarFillRegexp, function (match) {
       // var width = match.match(/width="(\d+)"/)[1]
       var height = match.match(/height="(\d+)"/)[1]
       var gradientId = match.match(/url\('#([^']*)'\)/)
@@ -129,7 +128,7 @@ class Inkscape {
 
       return false
     })
-
+    
     return svg
   }
 

From 40437c444ba3864ef5745e09205cf27428b5d92d Mon Sep 17 00:00:00 2001
From: Antoine Roy-Gobeil <antoine@plot.ly>
Date: Tue, 27 Nov 2018 15:28:57 -0500
Subject: [PATCH 04/24] circleci: debian-jessie -> debien-strecth to get
 inkscape 0.9x

---
 .circleci/config.yml | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/.circleci/config.yml b/.circleci/config.yml
index c2c9f463..cac10904 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -61,7 +61,7 @@ jobs:
           name: Install deps
           command: |
             npm install
-            sudo apt-get install poppler-utils libgconf-2-4
+            sudo apt-get install inkscape poppler-utils libgconf-2-4
       - run:
           name: List deps
           command: |
@@ -83,16 +83,16 @@ jobs:
   test-node-v6:
     <<: *base
     docker:
-      - image: circleci/node:6.14-browsers
+      - image: circleci/node:6.14-stretch-browsers
 
   test-node-v8:
     <<: *base
     docker:
-      - image: circleci/node:8.11-browsers
+      - image: circleci/node:8.11-stretch-browsers
 
   docker-build-and-push:
     docker:
-      - image: circleci/node:8.11-browsers
+      - image: circleci/node:8.11-stretch-browsers
     steps:
       - setup_remote_docker:
           reusable: true

From 25f0bb6e7906ee56c38146cf6ff49bb5dde18e9c Mon Sep 17 00:00:00 2001
From: Antoine Roy-Gobeil <antoine@plot.ly>
Date: Tue, 27 Nov 2018 15:42:32 -0500
Subject: [PATCH 05/24] properly check test-mock.emf size and fix lint

---
 src/util/inkscape.js       | 2 +-
 test/unit/inkscape_test.js | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/util/inkscape.js b/src/util/inkscape.js
index bb4ae844..4f3c2890 100644
--- a/src/util/inkscape.js
+++ b/src/util/inkscape.js
@@ -128,7 +128,7 @@ class Inkscape {
 
       return false
     })
-    
+
     return svg
   }
 
diff --git a/test/unit/inkscape_test.js b/test/unit/inkscape_test.js
index 1ccd27bd..28011e2a 100644
--- a/test/unit/inkscape_test.js
+++ b/test/unit/inkscape_test.js
@@ -20,7 +20,7 @@ tap.test('inkscape.svg2emf', t => {
         if (err) t.fail(err)
 
         const size = fs.statSync(outPath).size
-        t.ok(size > 9e4, 'min emf file size')
+        t.ok(size > 2e4, 'min emf file size')
         t.end()
       })
     })

From e2f2be7c6fbf96fddaa6919ea4b365155e9e84b3 Mon Sep 17 00:00:00 2001
From: Antoine Roy-Gobeil <antoine@plot.ly>
Date: Tue, 27 Nov 2018 15:50:34 -0500
Subject: [PATCH 06/24] missing deps, need to update package lists

---
 .circleci/config.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.circleci/config.yml b/.circleci/config.yml
index cac10904..bb637133 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -61,7 +61,7 @@ jobs:
           name: Install deps
           command: |
             npm install
-            sudo apt-get install inkscape poppler-utils libgconf-2-4
+            sudo apt-get update && sudo apt-get install inkscape poppler-utils libgconf-2-4
       - run:
           name: List deps
           command: |
@@ -138,7 +138,7 @@ jobs:
 
   electron-pack-and-release:
     docker:
-      - image: circleci/node:8.11-browsers
+      - image: circleci/node:8.11-stretch-browsers
     steps:
       - restore_cache:
           key: v1-source-{{ .Branch }}-{{ .Revision }}

From 5ed1198eb1686239b8f9171f5ac16844526cd03f Mon Sep 17 00:00:00 2001
From: Antoine Roy-Gobeil <antoine@plot.ly>
Date: Thu, 29 Nov 2018 13:17:20 -0500
Subject: [PATCH 07/24] minor code style fix

---
 .circleci/config.yml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/.circleci/config.yml b/.circleci/config.yml
index bb637133..0465c9bf 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -61,7 +61,8 @@ jobs:
           name: Install deps
           command: |
             npm install
-            sudo apt-get update && sudo apt-get install inkscape poppler-utils libgconf-2-4
+            sudo apt-get update
+            sudo apt-get install inkscape poppler-utils libgconf-2-4
       - run:
           name: List deps
           command: |

From fc8c755566b6ebbc476258524cef57e18bbb59b8 Mon Sep 17 00:00:00 2001
From: Antoine Roy-Gobeil <antoine@plot.ly>
Date: Thu, 29 Nov 2018 20:07:44 -0500
Subject: [PATCH 08/24] check Inkscape's version, provide meaning error message
 when --verbose

---
 src/component/plotly-graph/convert.js |  8 +++++++
 src/util/inkscape.js                  | 27 ++++++++++++++++++++-
 test/unit/inkscape_test.js            | 34 ++++++++++++++++++++++++---
 3 files changed, 65 insertions(+), 4 deletions(-)

diff --git a/src/component/plotly-graph/convert.js b/src/component/plotly-graph/convert.js
index 0e6505eb..685c9c96 100644
--- a/src/component/plotly-graph/convert.js
+++ b/src/component/plotly-graph/convert.js
@@ -61,6 +61,14 @@ function convert (info, opts, reply) {
       ? opts.inkscape
       : new Inkscape(opts.inkscape)
 
+    try {
+      inkscape.CheckInstallation()
+    } catch (e) {
+      errorCode = 530
+      result.error = e
+      return done()
+    }
+
     inkscape.svg2emf(svg, {id: info.id}, (err, emf) => {
       if (err) {
         errorCode = 530
diff --git a/src/util/inkscape.js b/src/util/inkscape.js
index 4f3c2890..b2b2d7fa 100644
--- a/src/util/inkscape.js
+++ b/src/util/inkscape.js
@@ -6,6 +6,7 @@ const series = require('run-series')
 const uuid = require('uuid/v4')
 const os = require('os')
 const PNG = require('pngjs').PNG
+const semver = require('semver')
 
 const PATH_TO_BUILD = path.join(os.tmpdir(), 'orca-build')
 try {
@@ -135,7 +136,7 @@ class Inkscape {
   /** Is Inkscape installed?
    * @return {boolean}
    */
-  static isInkscapeInstalled () {
+  isInstalled () {
     try {
       childProcess.execSync(`${this.cmdBase} --version`, {
         stdio: 'ignore'
@@ -145,6 +146,30 @@ class Inkscape {
     }
     return true
   }
+
+  /** Returns inkscape version
+   * @return {string}
+   */
+  Version () {
+    try {
+      var out = childProcess.execSync(`${this.cmdBase} --version`)
+      out = out.toString()
+      var found = out.match(/Inkscape (\d+\.\d+\.\d+)/)
+      return found[1]
+    } catch (e) {
+      return ''
+    }
+  }
+
+  CheckInstallation () {
+    if (!this.isInstalled()) {
+      throw new Error('Inkscape is not installed')
+    }
+
+    if (!this.Version() || !semver.gte(this.Version(), '0.92.3')) {
+      throw new Error('Inkscape version should be greater than or equal to 0.92.3')
+    }
+  }
 }
 
 module.exports = Inkscape
diff --git a/test/unit/inkscape_test.js b/test/unit/inkscape_test.js
index 28011e2a..65e7278e 100644
--- a/test/unit/inkscape_test.js
+++ b/test/unit/inkscape_test.js
@@ -58,7 +58,7 @@ tap.test('inkscape.svg2emf', t => {
   t.end()
 })
 
-tap.test('isInkscapeInstalled', t => {
+tap.test('Inkscape installation', t => {
   t.afterEach((done) => {
     childProcess.execSync.restore()
     done()
@@ -66,13 +66,41 @@ tap.test('isInkscapeInstalled', t => {
 
   t.test('should return true when binary execute correctly', t => {
     sinon.stub(childProcess, 'execSync').returns(true)
-    t.ok(Inkscape.isInkscapeInstalled())
+    var inkscape = new Inkscape()
+    t.ok(inkscape.isInstalled())
     t.end()
   })
 
   t.test('should return false when binary does not execute correctly', t => {
     sinon.stub(childProcess, 'execSync').throws()
-    t.notOk(Inkscape.isInkscapeInstalled())
+    var inkscape = new Inkscape()
+    t.notOk(inkscape.isInstalled())
+    t.end()
+  })
+
+  t.test('should return Inkscape version', t => {
+    var inkscape = new Inkscape()
+    sinon.stub(childProcess, 'execSync').returns('Inkscape 0.92.3 (2405546, 2018-03-11)')
+    t.ok(inkscape.Version() === '0.92.3')
+
+    childProcess.execSync.restore()
+    sinon.stub(childProcess, 'execSync').returns('Inkscape 0.48.5 r10040 (Oct  7 2014)')
+    t.ok(inkscape.Version() === '0.48.5')
+
+    t.end()
+  })
+
+  t.test('CheckInstallation() should throw error with older version of Inkscape', t => {
+    var inkscape = new Inkscape()
+    sinon.stub(childProcess, 'execSync').returns('Inkscape 0.48.5 r10040 (Oct  7 2014)')
+    t.throws(function () { inkscape.CheckInstallation() })
+    t.end()
+  })
+
+  t.test('CheckInstallation() should NOT throw error with newer version of Inkscape', t => {
+    var inkscape = new Inkscape()
+    sinon.stub(childProcess, 'execSync').returns('Inkscape 0.92.3 (2405546, 2018-03-11)')
+    t.doesNotThrow(function () { inkscape.CheckInstallation() })
     t.end()
   })
 

From 1ecb2f41fe9396a69738c99ead3171f38cb0b8c8 Mon Sep 17 00:00:00 2001
From: Antoine Roy-Gobeil <antoine@plot.ly>
Date: Mon, 3 Dec 2018 14:45:00 -0500
Subject: [PATCH 09/24] parse SVG using jsdom instead of regexes

---
 package-lock.json    | 314 ++++++++++++++++++++++++++++++++++++++++---
 package.json         |   1 +
 src/util/inkscape.js | 102 +++++++++-----
 3 files changed, 367 insertions(+), 50 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index a1c01d36..4452f7f2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -66,6 +66,11 @@
       "integrity": "sha512-BvcUxNZe9JgiiUVivtiQt3NrPVu9OAQzkxR1Ko9ESftCYU7V6Np5kpDzQwxd+34lsop7SNRdL292Flv52OvCaw==",
       "dev": true
     },
+    "abab": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/abab/-/abab-2.0.0.tgz",
+      "integrity": "sha512-sY5AXXVZv4Y1VACTtR11UJCPHHudgY5i26Qj5TypE6DKlIApbwb5uqhXcJ5UUGbvZNRh7EeIoW+LrJumBsKp7w=="
+    },
     "accessibility-developer-tools": {
       "version": "2.12.0",
       "resolved": "https://registry.npmjs.org/accessibility-developer-tools/-/accessibility-developer-tools-2.12.0.tgz",
@@ -78,6 +83,22 @@
       "integrity": "sha512-d+nbxBUGKg7Arpsvbnlq61mc12ek3EY8EQldM3GPAhWJ1UVxC6TDGbIvUMNU6obBX3i1+ptCIzV4vq0gFPEGVQ==",
       "dev": true
     },
+    "acorn-globals": {
+      "version": "4.3.0",
+      "resolved": "https://registry.npmjs.org/acorn-globals/-/acorn-globals-4.3.0.tgz",
+      "integrity": "sha512-hMtHj3s5RnuhvHPowpBYvJVj3rAar82JiDQHvGs1zO0l10ocX/xEdBShNHTJaboucJUsScghp74pH3s7EnHHQw==",
+      "requires": {
+        "acorn": "^6.0.1",
+        "acorn-walk": "^6.0.1"
+      },
+      "dependencies": {
+        "acorn": {
+          "version": "6.0.4",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.0.4.tgz",
+          "integrity": "sha512-VY4i5EKSKkofY2I+6QLTbTTN/UvEQPCo6eiwzzSaSWfpaDhOmStMCMod6wmuPciNq+XS0faCglFu2lHZpdHUtg=="
+        }
+      }
+    },
     "acorn-jsx": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-3.0.1.tgz",
@@ -95,6 +116,11 @@
         }
       }
     },
+    "acorn-walk": {
+      "version": "6.1.1",
+      "resolved": "https://registry.npmjs.org/acorn-walk/-/acorn-walk-6.1.1.tgz",
+      "integrity": "sha512-OtUw6JUTgxA2QoqqmrmQ7F2NYqiBPi/L2jqHyFtllhOUvXYQXf0Z1CYUinIfyT4bTCGmrA7gX9FvHA81uzCoVw=="
+    },
     "ajv": {
       "version": "6.4.0",
       "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.4.0.tgz",
@@ -329,6 +355,11 @@
         "sprintf-js": "~1.0.2"
       }
     },
+    "array-equal": {
+      "version": "1.0.0",
+      "resolved": "http://registry.npmjs.org/array-equal/-/array-equal-1.0.0.tgz",
+      "integrity": "sha1-jCpe8kcv2ep0KwTHenUJO6J1fJM="
+    },
     "array-find-index": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/array-find-index/-/array-find-index-1.0.2.tgz",
@@ -394,6 +425,11 @@
       "integrity": "sha1-i9iwJLDsmxwBzMua+dspvXF9+vM=",
       "dev": true
     },
+    "async-limiter": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/async-limiter/-/async-limiter-1.0.0.tgz",
+      "integrity": "sha512-jp/uFnooOiO+L211eZOoSyzpOITMXx1rBITauYykG3BRYPu8h0UcxsPNB04RR5vo4Tyz3+ay17tR6JVf9qzYWg=="
+    },
     "asynckit": {
       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
@@ -661,6 +697,11 @@
         "concat-map": "0.0.1"
       }
     },
+    "browser-process-hrtime": {
+      "version": "0.1.3",
+      "resolved": "https://registry.npmjs.org/browser-process-hrtime/-/browser-process-hrtime-0.1.3.tgz",
+      "integrity": "sha512-bRFnI4NnjO6cnyLmOV/7PVoDEMJChlcfN0z4s1YMBY989/SvlfMI1lgCnkFUs53e9gQF+w7qu7XdllSTiSl8Aw=="
+    },
     "buffer": {
       "version": "5.2.0",
       "resolved": "https://registry.npmjs.org/buffer/-/buffer-5.2.0.tgz",
@@ -1293,6 +1334,19 @@
       "integrity": "sha1-Xv1sLupeof1rasV+wEJ7GEUkJOo=",
       "dev": true
     },
+    "cssom": {
+      "version": "0.3.4",
+      "resolved": "https://registry.npmjs.org/cssom/-/cssom-0.3.4.tgz",
+      "integrity": "sha512-+7prCSORpXNeR4/fUP3rL+TzqtiFfhMvTd7uEqMdgPvLPt4+uzFUeufx5RHjGTACCargg/DiEt/moMQmvnfkog=="
+    },
+    "cssstyle": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/cssstyle/-/cssstyle-1.1.1.tgz",
+      "integrity": "sha512-364AI1l/M5TYcFH83JnOH/pSqgaNnKmYgKrm0didZMGKWjQB60dymwWy1rKUgL3J1ffdq9xVi2yGLHdSjjSNog==",
+      "requires": {
+        "cssom": "0.3.x"
+      }
+    },
     "currently-unhandled": {
       "version": "0.4.1",
       "resolved": "https://registry.npmjs.org/currently-unhandled/-/currently-unhandled-0.4.1.tgz",
@@ -1310,6 +1364,16 @@
         "assert-plus": "^1.0.0"
       }
     },
+    "data-urls": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/data-urls/-/data-urls-1.1.0.tgz",
+      "integrity": "sha512-YTWYI9se1P55u58gL5GkQHW4P6VJBJ5iBT+B5a7i2Tjadhv52paJG0qHX4A0OR6/t52odI64KP2YvFpkDOi3eQ==",
+      "requires": {
+        "abab": "^2.0.0",
+        "whatwg-mimetype": "^2.2.0",
+        "whatwg-url": "^7.0.0"
+      }
+    },
     "debug": {
       "version": "2.6.9",
       "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
@@ -1346,8 +1410,7 @@
     "deep-is": {
       "version": "0.1.3",
       "resolved": "https://registry.npmjs.org/deep-is/-/deep-is-0.1.3.tgz",
-      "integrity": "sha1-s2nW+128E+7PUk+RsHD+7cNXzzQ=",
-      "dev": true
+      "integrity": "sha1-s2nW+128E+7PUk+RsHD+7cNXzzQ="
     },
     "deepmerge": {
       "version": "2.0.1",
@@ -1466,6 +1529,14 @@
         "esutils": "^2.0.2"
       }
     },
+    "domexception": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/domexception/-/domexception-1.0.1.tgz",
+      "integrity": "sha512-raigMkn7CJNNo6Ihro1fzG7wr3fHuYVytzquZKX5n0yizGsTcYgzdIUwj1X9pK0VvjeihV+XiclP+DjwbsSKug==",
+      "requires": {
+        "webidl-conversions": "^4.0.2"
+      }
+    },
     "dot-prop": {
       "version": "4.2.0",
       "resolved": "https://registry.npmjs.org/dot-prop/-/dot-prop-4.2.0.tgz",
@@ -1959,6 +2030,31 @@
       "integrity": "sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ=",
       "dev": true
     },
+    "escodegen": {
+      "version": "1.11.0",
+      "resolved": "https://registry.npmjs.org/escodegen/-/escodegen-1.11.0.tgz",
+      "integrity": "sha512-IeMV45ReixHS53K/OmfKAIztN/igDHzTJUhZM3k1jMhIZWjk45SMwAtBsEXiJp3vSPmTcu6CXn7mDvFHRN66fw==",
+      "requires": {
+        "esprima": "^3.1.3",
+        "estraverse": "^4.2.0",
+        "esutils": "^2.0.2",
+        "optionator": "^0.8.1",
+        "source-map": "~0.6.1"
+      },
+      "dependencies": {
+        "esprima": {
+          "version": "3.1.3",
+          "resolved": "https://registry.npmjs.org/esprima/-/esprima-3.1.3.tgz",
+          "integrity": "sha1-/cpRzuYTOJXjyI1TXOSdv/YqRjM="
+        },
+        "source-map": {
+          "version": "0.6.1",
+          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
+          "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==",
+          "optional": true
+        }
+      }
+    },
     "eslint": {
       "version": "4.18.2",
       "resolved": "https://registry.npmjs.org/eslint/-/eslint-4.18.2.tgz",
@@ -2271,14 +2367,12 @@
     "estraverse": {
       "version": "4.2.0",
       "resolved": "https://registry.npmjs.org/estraverse/-/estraverse-4.2.0.tgz",
-      "integrity": "sha1-De4/7TH81GlhjOc0IJn8GvoL2xM=",
-      "dev": true
+      "integrity": "sha1-De4/7TH81GlhjOc0IJn8GvoL2xM="
     },
     "esutils": {
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/esutils/-/esutils-2.0.2.tgz",
-      "integrity": "sha1-Cr9PHKpbyx96nYrMbepPqqBLrJs=",
-      "dev": true
+      "integrity": "sha1-Cr9PHKpbyx96nYrMbepPqqBLrJs="
     },
     "events-to-array": {
       "version": "1.1.2",
@@ -2365,8 +2459,7 @@
     "fast-levenshtein": {
       "version": "2.0.6",
       "resolved": "https://registry.npmjs.org/fast-levenshtein/-/fast-levenshtein-2.0.6.tgz",
-      "integrity": "sha1-PYpcZog6FqMMqGQ+hR8Zuqd5eRc=",
-      "dev": true
+      "integrity": "sha1-PYpcZog6FqMMqGQ+hR8Zuqd5eRc="
     },
     "fd-slicer": {
       "version": "1.0.1",
@@ -2739,6 +2832,14 @@
       "integrity": "sha512-pNgbURSuab90KbTqvRPsseaTxOJCZBD0a7t+haSN33piP9cCM4l0CqdzAif2hUqm716UovKB2ROmiabGAKVXyg==",
       "dev": true
     },
+    "html-encoding-sniffer": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/html-encoding-sniffer/-/html-encoding-sniffer-1.0.2.tgz",
+      "integrity": "sha512-71lZziiDnsuabfdYiUeWdCVyKuqwWi23L8YeIgV9jSSZHCtb6wB1BKWooH7L3tn4/FuZJMVWyNaIDr4RGmaSYw==",
+      "requires": {
+        "whatwg-encoding": "^1.0.1"
+      }
+    },
     "http-signature": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/http-signature/-/http-signature-1.2.0.tgz",
@@ -3101,6 +3202,46 @@
       "integrity": "sha1-peZUwuWi3rXyAdls77yoDA7y9RM=",
       "optional": true
     },
+    "jsdom": {
+      "version": "13.0.0",
+      "resolved": "https://registry.npmjs.org/jsdom/-/jsdom-13.0.0.tgz",
+      "integrity": "sha512-Kmq4ASMNkgpY+YufE322EnIKoiz0UWY2DRkKlU7d5YrIW4xiVRhWFrZV1fr6w/ZNxQ50wGAH5gGRzydgnmkkvw==",
+      "requires": {
+        "abab": "^2.0.0",
+        "acorn": "^6.0.2",
+        "acorn-globals": "^4.3.0",
+        "array-equal": "^1.0.0",
+        "cssom": "^0.3.4",
+        "cssstyle": "^1.1.1",
+        "data-urls": "^1.0.1",
+        "domexception": "^1.0.1",
+        "escodegen": "^1.11.0",
+        "html-encoding-sniffer": "^1.0.2",
+        "nwsapi": "^2.0.9",
+        "parse5": "5.1.0",
+        "pn": "^1.1.0",
+        "request": "^2.88.0",
+        "request-promise-native": "^1.0.5",
+        "saxes": "^3.1.3",
+        "symbol-tree": "^3.2.2",
+        "tough-cookie": "^2.4.3",
+        "w3c-hr-time": "^1.0.1",
+        "w3c-xmlserializer": "^1.0.0",
+        "webidl-conversions": "^4.0.2",
+        "whatwg-encoding": "^1.0.5",
+        "whatwg-mimetype": "^2.2.0",
+        "whatwg-url": "^7.0.0",
+        "ws": "^6.1.0",
+        "xml-name-validator": "^3.0.0"
+      },
+      "dependencies": {
+        "acorn": {
+          "version": "6.0.4",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.0.4.tgz",
+          "integrity": "sha512-VY4i5EKSKkofY2I+6QLTbTTN/UvEQPCo6eiwzzSaSWfpaDhOmStMCMod6wmuPciNq+XS0faCglFu2lHZpdHUtg=="
+        }
+      }
+    },
     "json-parse-better-errors": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/json-parse-better-errors/-/json-parse-better-errors-1.0.2.tgz",
@@ -3271,7 +3412,6 @@
       "version": "0.3.0",
       "resolved": "https://registry.npmjs.org/levn/-/levn-0.3.0.tgz",
       "integrity": "sha1-OwmSTt+fCDwEkP3UwLxEIeBHZO4=",
-      "dev": true,
       "requires": {
         "prelude-ls": "~1.1.2",
         "type-check": "~0.3.2"
@@ -3311,8 +3451,7 @@
     "lodash": {
       "version": "4.17.10",
       "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.10.tgz",
-      "integrity": "sha512-UejweD1pDoXu+AD825lWwp4ZGtSwgnpZxb3JDViD7StjQz+Nb/6l093lx4OQ0foGWNRoc19mWy7BzL+UAK2iVg==",
-      "dev": true
+      "integrity": "sha512-UejweD1pDoXu+AD825lWwp4ZGtSwgnpZxb3JDViD7StjQz+Nb/6l093lx4OQ0foGWNRoc19mWy7BzL+UAK2iVg=="
     },
     "lodash.get": {
       "version": "4.4.2",
@@ -3320,6 +3459,11 @@
       "integrity": "sha1-LRd/ZS+jHpObRDjVNBSZ36OCXpk=",
       "dev": true
     },
+    "lodash.sortby": {
+      "version": "4.7.0",
+      "resolved": "https://registry.npmjs.org/lodash.sortby/-/lodash.sortby-4.7.0.tgz",
+      "integrity": "sha1-7dFMgk4sycHgsKG0K7UhBRakJDg="
+    },
     "log-driver": {
       "version": "1.2.7",
       "resolved": "https://registry.npmjs.org/log-driver/-/log-driver-1.2.7.tgz",
@@ -3584,6 +3728,11 @@
       "integrity": "sha1-CXtgK1NCKlIsGvuHkDGDNpQaAR0=",
       "dev": true
     },
+    "nwsapi": {
+      "version": "2.0.9",
+      "resolved": "https://registry.npmjs.org/nwsapi/-/nwsapi-2.0.9.tgz",
+      "integrity": "sha512-nlWFSCTYQcHk/6A9FFnfhKc14c3aFhfdNBXgo8Qgi9QTBu/qg3Ww+Uiz9wMzXd1T8GFxPc2QIHB6Qtf2XFryFQ=="
+    },
     "nyc": {
       "version": "11.9.0",
       "resolved": "https://registry.npmjs.org/nyc/-/nyc-11.9.0.tgz",
@@ -6276,7 +6425,6 @@
       "version": "0.8.2",
       "resolved": "https://registry.npmjs.org/optionator/-/optionator-0.8.2.tgz",
       "integrity": "sha1-NkxeQJ0/TWMB1sC0wFu6UBgK62Q=",
-      "dev": true,
       "requires": {
         "deep-is": "~0.1.3",
         "fast-levenshtein": "~2.0.4",
@@ -6289,8 +6437,7 @@
         "wordwrap": {
           "version": "1.0.0",
           "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-1.0.0.tgz",
-          "integrity": "sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus=",
-          "dev": true
+          "integrity": "sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus="
         }
       }
     },
@@ -6391,6 +6538,11 @@
         "error-ex": "^1.2.0"
       }
     },
+    "parse5": {
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/parse5/-/parse5-5.1.0.tgz",
+      "integrity": "sha512-fxNG2sQjHvlVAYmzBZS9YlDp6PTSSDwa98vkD4QgVDDCAo84z5X1t5XyJQ62ImdLXx5NdIIfihey6xpum9/gRQ=="
+    },
     "path-exists": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-2.1.0.tgz",
@@ -6581,6 +6733,11 @@
       "integrity": "sha1-KYuJ34uTsCIdv0Ia0rGx6iP8Z3c=",
       "dev": true
     },
+    "pn": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/pn/-/pn-1.1.0.tgz",
+      "integrity": "sha512-2qHaIQr2VLRFoxe2nASzsV6ef4yOOH+Fi9FBOVH6cqeSgUnoyySPZkxzLuzd+RYOQTRpROA0ztTMqxROKSb/nA=="
+    },
     "pngjs": {
       "version": "3.3.3",
       "resolved": "https://registry.npmjs.org/pngjs/-/pngjs-3.3.3.tgz",
@@ -6589,8 +6746,7 @@
     "prelude-ls": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/prelude-ls/-/prelude-ls-1.1.2.tgz",
-      "integrity": "sha1-IZMqVJ9eUv/ZqCf1cOBL5iqX2lQ=",
-      "dev": true
+      "integrity": "sha1-IZMqVJ9eUv/ZqCf1cOBL5iqX2lQ="
     },
     "prepend-http": {
       "version": "1.0.4",
@@ -6860,6 +7016,24 @@
         }
       }
     },
+    "request-promise-core": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/request-promise-core/-/request-promise-core-1.1.1.tgz",
+      "integrity": "sha1-Pu4AssWqgyOc+wTFcA2jb4HNCLY=",
+      "requires": {
+        "lodash": "^4.13.1"
+      }
+    },
+    "request-promise-native": {
+      "version": "1.0.5",
+      "resolved": "https://registry.npmjs.org/request-promise-native/-/request-promise-native-1.0.5.tgz",
+      "integrity": "sha1-UoF3D2jgyXGeUWP9P6tIIhX0/aU=",
+      "requires": {
+        "request-promise-core": "1.1.1",
+        "stealthy-require": "^1.1.0",
+        "tough-cookie": ">=2.3.3"
+      }
+    },
     "require-directory": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/require-directory/-/require-directory-2.1.1.tgz",
@@ -7003,6 +7177,14 @@
       "integrity": "sha1-KBYjTiN4vdxOU1T6tcqold9xANk=",
       "dev": true
     },
+    "saxes": {
+      "version": "3.1.4",
+      "resolved": "https://registry.npmjs.org/saxes/-/saxes-3.1.4.tgz",
+      "integrity": "sha512-GVZmLJnkS4Vl8Pe9o4nc5ALZ615VOVxCmea8Cs0l+8GZw3RQ5XGOSUomIUfuZuk4Todo44v4y+HY1EATkDDiZg==",
+      "requires": {
+        "xmlchars": "^1.3.1"
+      }
+    },
     "semver": {
       "version": "5.5.0",
       "resolved": "https://registry.npmjs.org/semver/-/semver-5.5.0.tgz",
@@ -7375,6 +7557,11 @@
       "integrity": "sha1-5sgLYjEj19gM8TLOU480YokHJQI=",
       "dev": true
     },
+    "stealthy-require": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/stealthy-require/-/stealthy-require-1.1.1.tgz",
+      "integrity": "sha1-NbCYdbT/SfJqd35QmzCQoyJr8ks="
+    },
     "string-template": {
       "version": "0.2.1",
       "resolved": "https://registry.npmjs.org/string-template/-/string-template-0.2.1.tgz",
@@ -7513,6 +7700,11 @@
         }
       }
     },
+    "symbol-tree": {
+      "version": "3.2.2",
+      "resolved": "https://registry.npmjs.org/symbol-tree/-/symbol-tree-3.2.2.tgz",
+      "integrity": "sha1-rifbOPZgp64uHDt9G8KQgZuFGeY="
+    },
     "table": {
       "version": "4.0.2",
       "resolved": "https://registry.npmjs.org/table/-/table-4.0.2.tgz",
@@ -7884,6 +8076,21 @@
         "punycode": "^1.4.1"
       }
     },
+    "tr46": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/tr46/-/tr46-1.0.1.tgz",
+      "integrity": "sha1-qLE/1r/SSJUZZ0zN5VujaTtwbQk=",
+      "requires": {
+        "punycode": "^2.1.0"
+      },
+      "dependencies": {
+        "punycode": {
+          "version": "2.1.1",
+          "resolved": "https://registry.npmjs.org/punycode/-/punycode-2.1.1.tgz",
+          "integrity": "sha512-XRsRjdf+j5ml+y/6GKHPZbrF/8p2Yga0JPtdqTIY2Xe5ohJPD9saDJJLPvp9+NSBprVvevdXZybnj2cv8OEd0A=="
+        }
+      }
+    },
     "trim-newlines": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/trim-newlines/-/trim-newlines-1.0.0.tgz",
@@ -7929,7 +8136,6 @@
       "version": "0.3.2",
       "resolved": "https://registry.npmjs.org/type-check/-/type-check-0.3.2.tgz",
       "integrity": "sha1-WITKtRLPHTVeP7eE8wgEsrUg23I=",
-      "dev": true,
       "requires": {
         "prelude-ls": "~1.1.2"
       }
@@ -8124,6 +8330,24 @@
         "extsprintf": "^1.2.0"
       }
     },
+    "w3c-hr-time": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/w3c-hr-time/-/w3c-hr-time-1.0.1.tgz",
+      "integrity": "sha1-gqwr/2PZUOqeMYmlimViX+3xkEU=",
+      "requires": {
+        "browser-process-hrtime": "^0.1.2"
+      }
+    },
+    "w3c-xmlserializer": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/w3c-xmlserializer/-/w3c-xmlserializer-1.0.0.tgz",
+      "integrity": "sha512-0et1+9uXYiIRAecx1D5Z1nk60+vimniGdIKl4XjeqkWi6acoHNlXMv1VR5jV+jF4ooeO08oWbYxeAJOcon1oMA==",
+      "requires": {
+        "domexception": "^1.0.1",
+        "webidl-conversions": "^4.0.2",
+        "xml-name-validator": "^3.0.0"
+      }
+    },
     "wdio-dot-reporter": {
       "version": "0.0.10",
       "resolved": "https://registry.npmjs.org/wdio-dot-reporter/-/wdio-dot-reporter-0.0.10.tgz",
@@ -8176,12 +8400,50 @@
         }
       }
     },
+    "webidl-conversions": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-4.0.2.tgz",
+      "integrity": "sha512-YQ+BmxuTgd6UXZW3+ICGfyqRyHXVlD5GtQr5+qjiNW7bF0cqrzX500HVXPBOvgXb5YnzDd+h0zqyv61KUD7+Sg=="
+    },
     "wgxpath": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/wgxpath/-/wgxpath-1.0.0.tgz",
       "integrity": "sha1-7vikudVYzEla06mit1FZfs2a9pA=",
       "dev": true
     },
+    "whatwg-encoding": {
+      "version": "1.0.5",
+      "resolved": "https://registry.npmjs.org/whatwg-encoding/-/whatwg-encoding-1.0.5.tgz",
+      "integrity": "sha512-b5lim54JOPN9HtzvK9HFXvBma/rnfFeqsic0hSpjtDbVxR3dJKLc+KB4V6GgiGOvl7CY/KNh8rxSo9DKQrnUEw==",
+      "requires": {
+        "iconv-lite": "0.4.24"
+      },
+      "dependencies": {
+        "iconv-lite": {
+          "version": "0.4.24",
+          "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.4.24.tgz",
+          "integrity": "sha512-v3MXnZAcvnywkTUEZomIActle7RXXeedOR31wwl7VlyoXO4Qi9arvSenNQWne1TcRwhCL1HwLI21bEqdpj8/rA==",
+          "requires": {
+            "safer-buffer": ">= 2.1.2 < 3"
+          }
+        }
+      }
+    },
+    "whatwg-mimetype": {
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/whatwg-mimetype/-/whatwg-mimetype-2.3.0.tgz",
+      "integrity": "sha512-M4yMwr6mAnQz76TbJm914+gPpB/nCwvZbJU28cUD6dR004SAxDLOOSUaB1JDRqLtaOV/vi0IC5lEAGFgrjGv/g=="
+    },
+    "whatwg-url": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-7.0.0.tgz",
+      "integrity": "sha512-37GeVSIJ3kn1JgKyjiYNmSLP1yzbpb29jdmwBSgkD9h40/hyrR/OifpVUndji3tmwGgD8qpw7iQu3RSbCrBpsQ==",
+      "requires": {
+        "lodash.sortby": "^4.7.0",
+        "tr46": "^1.0.1",
+        "webidl-conversions": "^4.0.2"
+      }
+    },
     "which": {
       "version": "1.3.0",
       "resolved": "https://registry.npmjs.org/which/-/which-1.3.0.tgz",
@@ -8297,18 +8559,36 @@
         "signal-exit": "^3.0.2"
       }
     },
+    "ws": {
+      "version": "6.1.2",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-6.1.2.tgz",
+      "integrity": "sha512-rfUqzvz0WxmSXtJpPMX2EeASXabOrSMk1ruMOV3JBTBjo4ac2lDjGGsbQSyxj8Odhw5fBib8ZKEjDNvgouNKYw==",
+      "requires": {
+        "async-limiter": "~1.0.0"
+      }
+    },
     "xdg-basedir": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/xdg-basedir/-/xdg-basedir-3.0.0.tgz",
       "integrity": "sha1-SWsswQnsqNus/i3HK2A8F8WHCtQ=",
       "dev": true
     },
+    "xml-name-validator": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/xml-name-validator/-/xml-name-validator-3.0.0.tgz",
+      "integrity": "sha512-A5CUptxDsvxKJEU3yO6DuWBSJz/qizqzJKOMIfUJHETbBw/sFaDxgd6fxm1ewUaM0jZ444Fc5vC5ROYurg/4Pw=="
+    },
     "xmlbuilder": {
       "version": "8.2.2",
       "resolved": "https://registry.npmjs.org/xmlbuilder/-/xmlbuilder-8.2.2.tgz",
       "integrity": "sha1-aSSGc0ELS6QuGmE2VR0pIjNap3M=",
       "dev": true
     },
+    "xmlchars": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/xmlchars/-/xmlchars-1.3.1.tgz",
+      "integrity": "sha512-tGkGJkN8XqCod7OT+EvGYK5Z4SfDQGD30zAa58OcnAa0RRWgzUEK72tkXhsX1FZd+rgnhRxFtmO+ihkp8LHSkw=="
+    },
     "xmldom": {
       "version": "0.1.27",
       "resolved": "https://registry.npmjs.org/xmldom/-/xmldom-0.1.27.tgz",
diff --git a/package.json b/package.json
index f4521ffe..03eca719 100644
--- a/package.json
+++ b/package.json
@@ -69,6 +69,7 @@
     "glob": "^7.1.2",
     "is-plain-obj": "^1.1.0",
     "is-url": "^1.2.4",
+    "jsdom": "^13.0.0",
     "minimist": "^1.2.0",
     "pngjs": "^3.3.3",
     "read-chunk": "^2.1.0",
diff --git a/src/util/inkscape.js b/src/util/inkscape.js
index b2b2d7fa..155eda23 100644
--- a/src/util/inkscape.js
+++ b/src/util/inkscape.js
@@ -7,20 +7,23 @@ const uuid = require('uuid/v4')
 const os = require('os')
 const PNG = require('pngjs').PNG
 const semver = require('semver')
+const jsdom = require('jsdom')
+const { JSDOM } = jsdom
 
 const PATH_TO_BUILD = path.join(os.tmpdir(), 'orca-build')
 try {
   fs.mkdirSync(PATH_TO_BUILD)
 } catch (e) {}
 
-const fullyTransparentColorbarRegexp = /<rect class="cbbg"(\s+[-\w]+="[^"]+")*\s+style="[^"]*fill-opacity: 0;[^"]*"(\s+[-\w]+="[^"]+")*\/>/g
-const fullyTransparentRectRegexp = /<rect(\s+[-\w]+="[^"]+")*\s+style="[^"]*stroke-opacity: 0;[^"]*fill-opacity: 0;[^"]*"(\s+[-\w]+="[^"]+")*\/>/g
-const transparentFillRectRegexp = /<rect(\s+[-\w]+="[^"]+")*\s+style="[^"]*fill-opacity: 0;[^"]*"(\s+[-\w]+="[^"]+")*\/>/g
-const transparentStrokeRectRegexp = /<rect(\s+[-\w]+="[^"]+")*\s+style="[^"]*stroke-opacity: 0;[^"]*"(\s+[-\w]+="[^"]+")*\/>/g
 const imgRegexp = /<image\s+xmlns="http:\/\/www.w3.org\/2000\/svg"\s+xlink:href="data:image\/png;base64,([^"]*)"[^>]*>/
-const colorbarFillRegexp = /<rect class="cbfill"[^>]*\/>/
 const xlinkHrefDataImageRegexp = /xlink:href="data:image\/png;base64,([^"]*)"/
 
+const fillUrl = /(^|; )fill: url\('#([^']*)'\);/
+const fillRgbaColor = /(^|; )fill: rgba\(([^)]*)\);/
+const fillOpacityZero = /(^|\s*)fill-opacity: 0;/
+const strokeOpacityZero = /(^|; )stroke-opacity: 0;/
+const opacityZero = /(^|; )opacity: 0;/
+
 /** Node wrapper for Inkscape
  *
  * $ apt-get install inkscape
@@ -71,25 +74,75 @@ class Inkscape {
 
   cleanSvg (svg) {
     var bgColor = [255, 255, 255]
+    const fragment = JSDOM.fragment(svg)
+
+    // Remove path and rectangles that are compleletely transparent
+    fragment.querySelectorAll('rect, path').forEach(function (node) {
+      var style = node.getAttribute('style')
+      if (style && (
+        (style.match(fillOpacityZero) && style.match(strokeOpacityZero)) ||
+        style.match(opacityZero)
+      )) node.remove()
+    })
+
+    // Set fill color to background color if its fill-opacity is 0 but stroke-opacity isn't 0
+    fragment.querySelectorAll('rect').forEach(function (node) {
+      var style = node.getAttribute('style')
+      if (!style) return
+      var m = style.match(fillOpacityZero)
+
+      if (m) {
+        var rgbFill = m[1] + `fill: rgb(${bgColor[0]},${bgColor[1]},${bgColor[2]});`
+        style = style.replace(m[0], rgbFill)
+        node.setAttribute('style', style)
+      }
+    })
 
     // Fix black legends by removing rect.legendtoggle
-    svg = svg.replace(/<rect class="legendtoggle"[^>]+>/g, '')
+    // regexp: svg = svg.replace(/<rect class="legendtoggle"[^>]+>/g, '')
+    fragment.querySelectorAll('rect.legendtoggle').forEach(node => node.remove())
 
     // Remove colorbar background if it's transparent
-    svg = svg.replace(fullyTransparentColorbarRegexp, '')
-    // Remove annotation's background if it's compleletely transparent
-    svg = svg.replace(fullyTransparentRectRegexp, '')
+    fragment.querySelectorAll('rect.cbbg').forEach(function (node) {
+      var style = node.getAttribute('style')
+      if (style && style.match(fillOpacityZero)) node.remove()
+    })
 
-    // Set fill color to background color if its opacity is 0
-    svg = svg.replace(transparentFillRectRegexp, function (match, p) {
-      return match.replace(/fill: [^;]*;/, `fill: rgb(${bgColor[0]},${bgColor[1]},${bgColor[2]});`)
+    // Fix fill in colorbars
+    fragment.querySelectorAll('rect.cbfill').forEach(function (node) {
+      var style = node.getAttribute('style')
+      if (style && style.match(fillUrl)) {
+        var gradientId = style.match(fillUrl)[2]
+
+        var el = fragment.getElementById(gradientId)
+        // Inkscape doesn't deal well with gradientUnits="objectBoundingBox"
+        el.setAttribute('gradientUnits', 'userSpaceOnUse')
+        var height = node.getAttribute('height')
+        el.setAttribute('y1', height)
+      }
     })
-    // Set stroke color to background color if its opacity is 0
-    svg = svg.replace(transparentStrokeRectRegexp, function (match, p) {
-      return match.replace(/stroke: [^;]*;/, `stroke: rgb(${bgColor[0]},${bgColor[1]},${bgColor[2]});`)
+
+    // Fix path with rgba color for fill
+    fragment.querySelectorAll('path').forEach(function (node) {
+      var style = node.getAttribute('style')
+      if (!style) return
+      var m = style.match(fillRgbaColor)
+      if (m) {
+        var sep = m[1]
+        var rgba = m[2].split(',')
+        if (rgba[3] === 0) {
+          node.remove()
+        } else {
+          var rgbFill = sep + 'fill: rgb(' + rgba.slice(0, 3) + ')'
+          style = style.replace(m[0], rgbFill)
+          node.setAttribute('style', style)
+        }
+      }
     })
 
-    // Fix black background in rasterized images
+    svg = fragment.firstChild.outerHTML
+
+    // Fix black background in rasterized images (WebGL)
     svg = svg.replace(imgRegexp, function (match, base64png) {
       var pngBuffer = Buffer.from(base64png, 'base64')
       var image = PNG.sync.read(pngBuffer)
@@ -113,23 +166,6 @@ class Inkscape {
       return match.replace(xlinkHrefDataImageRegexp, `xlink:href="data:image/png;base64,${pngOpaqueBuffer.toString('base64')}"`)
     })
 
-    // Inkscape doesn't convert well gradientUnits="objectBoundingBox" into EMF
-    svg.replace(colorbarFillRegexp, function (match) {
-      // var width = match.match(/width="(\d+)"/)[1]
-      var height = match.match(/height="(\d+)"/)[1]
-      var gradientId = match.match(/url\('#([^']*)'\)/)
-
-      if (gradientId) {
-        gradientId = gradientId[1]
-        var gradientIdRegexp = new RegExp(`<linearGradient[^>]*id="${gradientId}"[^>]*>`)
-        svg = svg.replace(gradientIdRegexp, function (m) {
-          return `<linearGradient gradientUnits="userSpaceOnUse" x1="0" x2="0" y1="${height}" y2="0" id="${gradientId}">`
-        })
-      }
-
-      return false
-    })
-
     return svg
   }
 

From 7dddce534b0996e49c8ee9a06c196fd67ca65cb6 Mon Sep 17 00:00:00 2001
From: Antoine Roy-Gobeil <antoine@plot.ly>
Date: Mon, 3 Dec 2018 16:25:43 -0500
Subject: [PATCH 10/24] jsdom 13.0.0 -> 11.12.0 to support node.js v6

---
 package-lock.json | 109 ++++++++++++++++++++--------------------------
 package.json      |   2 +-
 2 files changed, 48 insertions(+), 63 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 4452f7f2..6efed68b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -80,8 +80,7 @@
     "acorn": {
       "version": "5.7.1",
       "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.1.tgz",
-      "integrity": "sha512-d+nbxBUGKg7Arpsvbnlq61mc12ek3EY8EQldM3GPAhWJ1UVxC6TDGbIvUMNU6obBX3i1+ptCIzV4vq0gFPEGVQ==",
-      "dev": true
+      "integrity": "sha512-d+nbxBUGKg7Arpsvbnlq61mc12ek3EY8EQldM3GPAhWJ1UVxC6TDGbIvUMNU6obBX3i1+ptCIzV4vq0gFPEGVQ=="
     },
     "acorn-globals": {
       "version": "4.3.0",
@@ -1372,6 +1371,18 @@
         "abab": "^2.0.0",
         "whatwg-mimetype": "^2.2.0",
         "whatwg-url": "^7.0.0"
+      },
+      "dependencies": {
+        "whatwg-url": {
+          "version": "7.0.0",
+          "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-7.0.0.tgz",
+          "integrity": "sha512-37GeVSIJ3kn1JgKyjiYNmSLP1yzbpb29jdmwBSgkD9h40/hyrR/OifpVUndji3tmwGgD8qpw7iQu3RSbCrBpsQ==",
+          "requires": {
+            "lodash.sortby": "^4.7.0",
+            "tr46": "^1.0.1",
+            "webidl-conversions": "^4.0.2"
+          }
+        }
       }
     },
     "debug": {
@@ -3203,43 +3214,36 @@
       "optional": true
     },
     "jsdom": {
-      "version": "13.0.0",
-      "resolved": "https://registry.npmjs.org/jsdom/-/jsdom-13.0.0.tgz",
-      "integrity": "sha512-Kmq4ASMNkgpY+YufE322EnIKoiz0UWY2DRkKlU7d5YrIW4xiVRhWFrZV1fr6w/ZNxQ50wGAH5gGRzydgnmkkvw==",
+      "version": "11.12.0",
+      "resolved": "https://registry.npmjs.org/jsdom/-/jsdom-11.12.0.tgz",
+      "integrity": "sha512-y8Px43oyiBM13Zc1z780FrfNLJCXTL40EWlty/LXUtcjykRBNgLlCjWXpfSPBl2iv+N7koQN+dvqszHZgT/Fjw==",
       "requires": {
         "abab": "^2.0.0",
-        "acorn": "^6.0.2",
-        "acorn-globals": "^4.3.0",
+        "acorn": "^5.5.3",
+        "acorn-globals": "^4.1.0",
         "array-equal": "^1.0.0",
-        "cssom": "^0.3.4",
-        "cssstyle": "^1.1.1",
-        "data-urls": "^1.0.1",
+        "cssom": ">= 0.3.2 < 0.4.0",
+        "cssstyle": "^1.0.0",
+        "data-urls": "^1.0.0",
         "domexception": "^1.0.1",
-        "escodegen": "^1.11.0",
+        "escodegen": "^1.9.1",
         "html-encoding-sniffer": "^1.0.2",
-        "nwsapi": "^2.0.9",
-        "parse5": "5.1.0",
+        "left-pad": "^1.3.0",
+        "nwsapi": "^2.0.7",
+        "parse5": "4.0.0",
         "pn": "^1.1.0",
-        "request": "^2.88.0",
+        "request": "^2.87.0",
         "request-promise-native": "^1.0.5",
-        "saxes": "^3.1.3",
+        "sax": "^1.2.4",
         "symbol-tree": "^3.2.2",
-        "tough-cookie": "^2.4.3",
+        "tough-cookie": "^2.3.4",
         "w3c-hr-time": "^1.0.1",
-        "w3c-xmlserializer": "^1.0.0",
         "webidl-conversions": "^4.0.2",
-        "whatwg-encoding": "^1.0.5",
-        "whatwg-mimetype": "^2.2.0",
-        "whatwg-url": "^7.0.0",
-        "ws": "^6.1.0",
+        "whatwg-encoding": "^1.0.3",
+        "whatwg-mimetype": "^2.1.0",
+        "whatwg-url": "^6.4.1",
+        "ws": "^5.2.0",
         "xml-name-validator": "^3.0.0"
-      },
-      "dependencies": {
-        "acorn": {
-          "version": "6.0.4",
-          "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.0.4.tgz",
-          "integrity": "sha512-VY4i5EKSKkofY2I+6QLTbTTN/UvEQPCo6eiwzzSaSWfpaDhOmStMCMod6wmuPciNq+XS0faCglFu2lHZpdHUtg=="
-        }
       }
     },
     "json-parse-better-errors": {
@@ -3408,6 +3412,11 @@
       "integrity": "sha1-GwuP+ayceIklBYK3C3ExXZ2m2aM=",
       "dev": true
     },
+    "left-pad": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/left-pad/-/left-pad-1.3.0.tgz",
+      "integrity": "sha512-XI5MPzVNApjAyhQzphX8BkmKsKUxD4LdyK24iZeQGinBN9yTQT3bFlCBy/aVx2HrNcqQGsdot8ghrjyrvMCoEA=="
+    },
     "levn": {
       "version": "0.3.0",
       "resolved": "https://registry.npmjs.org/levn/-/levn-0.3.0.tgz",
@@ -6539,9 +6548,9 @@
       }
     },
     "parse5": {
-      "version": "5.1.0",
-      "resolved": "https://registry.npmjs.org/parse5/-/parse5-5.1.0.tgz",
-      "integrity": "sha512-fxNG2sQjHvlVAYmzBZS9YlDp6PTSSDwa98vkD4QgVDDCAo84z5X1t5XyJQ62ImdLXx5NdIIfihey6xpum9/gRQ=="
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/parse5/-/parse5-4.0.0.tgz",
+      "integrity": "sha512-VrZ7eOd3T1Fk4XWNXMgiGBK/z0MG48BWG2uQNU4I72fkQuKUTZpl+u9k+CxEG0twMVzSmXEEz12z5Fnw1jIQFA=="
     },
     "path-exists": {
       "version": "2.1.0",
@@ -7174,16 +7183,7 @@
     "sax": {
       "version": "1.2.4",
       "resolved": "https://registry.npmjs.org/sax/-/sax-1.2.4.tgz",
-      "integrity": "sha1-KBYjTiN4vdxOU1T6tcqold9xANk=",
-      "dev": true
-    },
-    "saxes": {
-      "version": "3.1.4",
-      "resolved": "https://registry.npmjs.org/saxes/-/saxes-3.1.4.tgz",
-      "integrity": "sha512-GVZmLJnkS4Vl8Pe9o4nc5ALZ615VOVxCmea8Cs0l+8GZw3RQ5XGOSUomIUfuZuk4Todo44v4y+HY1EATkDDiZg==",
-      "requires": {
-        "xmlchars": "^1.3.1"
-      }
+      "integrity": "sha1-KBYjTiN4vdxOU1T6tcqold9xANk="
     },
     "semver": {
       "version": "5.5.0",
@@ -8338,16 +8338,6 @@
         "browser-process-hrtime": "^0.1.2"
       }
     },
-    "w3c-xmlserializer": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/w3c-xmlserializer/-/w3c-xmlserializer-1.0.0.tgz",
-      "integrity": "sha512-0et1+9uXYiIRAecx1D5Z1nk60+vimniGdIKl4XjeqkWi6acoHNlXMv1VR5jV+jF4ooeO08oWbYxeAJOcon1oMA==",
-      "requires": {
-        "domexception": "^1.0.1",
-        "webidl-conversions": "^4.0.2",
-        "xml-name-validator": "^3.0.0"
-      }
-    },
     "wdio-dot-reporter": {
       "version": "0.0.10",
       "resolved": "https://registry.npmjs.org/wdio-dot-reporter/-/wdio-dot-reporter-0.0.10.tgz",
@@ -8435,9 +8425,9 @@
       "integrity": "sha512-M4yMwr6mAnQz76TbJm914+gPpB/nCwvZbJU28cUD6dR004SAxDLOOSUaB1JDRqLtaOV/vi0IC5lEAGFgrjGv/g=="
     },
     "whatwg-url": {
-      "version": "7.0.0",
-      "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-7.0.0.tgz",
-      "integrity": "sha512-37GeVSIJ3kn1JgKyjiYNmSLP1yzbpb29jdmwBSgkD9h40/hyrR/OifpVUndji3tmwGgD8qpw7iQu3RSbCrBpsQ==",
+      "version": "6.5.0",
+      "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-6.5.0.tgz",
+      "integrity": "sha512-rhRZRqx/TLJQWUpQ6bmrt2UV4f0HCQ463yQuONJqC6fO2VoEb1pTYddbe59SkYq87aoM5A3bdhMZiUiVws+fzQ==",
       "requires": {
         "lodash.sortby": "^4.7.0",
         "tr46": "^1.0.1",
@@ -8560,9 +8550,9 @@
       }
     },
     "ws": {
-      "version": "6.1.2",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-6.1.2.tgz",
-      "integrity": "sha512-rfUqzvz0WxmSXtJpPMX2EeASXabOrSMk1ruMOV3JBTBjo4ac2lDjGGsbQSyxj8Odhw5fBib8ZKEjDNvgouNKYw==",
+      "version": "5.2.2",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-5.2.2.tgz",
+      "integrity": "sha512-jaHFD6PFv6UgoIVda6qZllptQsMlDEJkTQcybzzXDYM1XO9Y8em691FGMPmM46WGyLU4z9KMgQN+qrux/nhlHA==",
       "requires": {
         "async-limiter": "~1.0.0"
       }
@@ -8584,11 +8574,6 @@
       "integrity": "sha1-aSSGc0ELS6QuGmE2VR0pIjNap3M=",
       "dev": true
     },
-    "xmlchars": {
-      "version": "1.3.1",
-      "resolved": "https://registry.npmjs.org/xmlchars/-/xmlchars-1.3.1.tgz",
-      "integrity": "sha512-tGkGJkN8XqCod7OT+EvGYK5Z4SfDQGD30zAa58OcnAa0RRWgzUEK72tkXhsX1FZd+rgnhRxFtmO+ihkp8LHSkw=="
-    },
     "xmldom": {
       "version": "0.1.27",
       "resolved": "https://registry.npmjs.org/xmldom/-/xmldom-0.1.27.tgz",
diff --git a/package.json b/package.json
index 03eca719..fc071017 100644
--- a/package.json
+++ b/package.json
@@ -69,7 +69,7 @@
     "glob": "^7.1.2",
     "is-plain-obj": "^1.1.0",
     "is-url": "^1.2.4",
-    "jsdom": "^13.0.0",
+    "jsdom": "11.12.0",
     "minimist": "^1.2.0",
     "pngjs": "^3.3.3",
     "read-chunk": "^2.1.0",

From 6b1a1fcd2d63c06b1dcf7e1e0e937856164968d1 Mon Sep 17 00:00:00 2001
From: Antoine Roy-Gobeil <antoine@plot.ly>
Date: Tue, 4 Dec 2018 12:59:04 -0500
Subject: [PATCH 11/24] find image elements using jsdom

---
 src/util/inkscape.js | 44 ++++++++++++++++++++++++--------------------
 1 file changed, 24 insertions(+), 20 deletions(-)

diff --git a/src/util/inkscape.js b/src/util/inkscape.js
index 155eda23..8b6f8aef 100644
--- a/src/util/inkscape.js
+++ b/src/util/inkscape.js
@@ -140,31 +140,35 @@ class Inkscape {
       }
     })
 
-    svg = fragment.firstChild.outerHTML
-
     // Fix black background in rasterized images (WebGL)
-    svg = svg.replace(imgRegexp, function (match, base64png) {
-      var pngBuffer = Buffer.from(base64png, 'base64')
-      var image = PNG.sync.read(pngBuffer)
-
-      for (var y = 0; y < image.height; y++) {
-        for (var x = 0; x < image.width; x++) {
-          var idx = (image.width * y + x) << 2
-
-          var alpha = image.data[idx + 3]
-          if (alpha < 255) {
-            // Manually do alpha composition (https://en.wikipedia.org/wiki/Alpha_compositing)
-            image.data[idx] = image.data[idx] * alpha / 255 + bgColor[0] * (1 - alpha / 255)
-            image.data[idx + 1] = image.data[idx + 1] * alpha / 255 + bgColor[1] * (1 - alpha / 255)
-            image.data[idx + 2] = image.data[idx + 2] * alpha / 255 + bgColor[2] * (1 - alpha / 255)
-
-            image.data[idx + 3] = 255
+    fragment.querySelectorAll('image').forEach(function (node) {
+      var dataType = 'data:image/png;base64'
+      var href = node.getAttribute('xlink:href')
+      var parts = href.split(',')
+      if(parts[0] === dataType) {
+        var pngBuffer = Buffer.from(parts[1], 'base64')
+        var image = PNG.sync.read(pngBuffer)
+
+        for (var y = 0; y < image.height; y++) {
+          for (var x = 0; x < image.width; x++) {
+            var idx = (image.width * y + x) << 2
+
+            var alpha = image.data[idx + 3]
+            if (alpha < 255) {
+              // Manually do alpha composition (https://en.wikipedia.org/wiki/Alpha_compositing)
+              image.data[idx] = image.data[idx] * alpha / 255 + bgColor[0] * (1 - alpha / 255)
+              image.data[idx + 1] = image.data[idx + 1] * alpha / 255 + bgColor[1] * (1 - alpha / 255)
+              image.data[idx + 2] = image.data[idx + 2] * alpha / 255 + bgColor[2] * (1 - alpha / 255)
+
+              image.data[idx + 3] = 255
+            }
           }
         }
+        var pngOpaqueBuffer = PNG.sync.write(image)
+        node.setAttribute('xlink:href', dataType + ',' + pngOpaqueBuffer.toString('base64'))
       }
-      var pngOpaqueBuffer = PNG.sync.write(image)
-      return match.replace(xlinkHrefDataImageRegexp, `xlink:href="data:image/png;base64,${pngOpaqueBuffer.toString('base64')}"`)
     })
+    svg = fragment.firstChild.outerHTML
 
     return svg
   }

From d4a1bfa003362d90a9c55d1d9a7e49c640e4117e Mon Sep 17 00:00:00 2001
From: Antoine Roy-Gobeil <antoine@plot.ly>
Date: Tue, 4 Dec 2018 13:46:31 -0500
Subject: [PATCH 12/24] gl3d: use bg color from figure.layout if provided

---
 package-lock.json                     |  5 +++++
 package.json                          |  1 +
 src/component/plotly-graph/convert.js |  3 ++-
 src/util/inkscape.js                  | 14 +++++++++++---
 4 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 6efed68b..0294559b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8046,6 +8046,11 @@
       "integrity": "sha1-8y6srFoXW+ol1/q1Zas+2HQe9W8=",
       "dev": true
     },
+    "tinycolor2": {
+      "version": "1.4.1",
+      "resolved": "https://registry.npmjs.org/tinycolor2/-/tinycolor2-1.4.1.tgz",
+      "integrity": "sha1-9PrTM0R7wLB9TcjpIJ2POaisd+g="
+    },
     "tmatch": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/tmatch/-/tmatch-4.0.0.tgz",
diff --git a/package.json b/package.json
index fc071017..84906368 100644
--- a/package.json
+++ b/package.json
@@ -79,6 +79,7 @@
     "run-series": "^1.1.8",
     "semver": "^5.4.1",
     "string-to-stream": "^1.1.1",
+    "tinycolor2": "^1.4.1",
     "uuid": "^3.3.2"
   },
   "devDependencies": {
diff --git a/src/component/plotly-graph/convert.js b/src/component/plotly-graph/convert.js
index 685c9c96..eab2ca8f 100644
--- a/src/component/plotly-graph/convert.js
+++ b/src/component/plotly-graph/convert.js
@@ -10,6 +10,7 @@ const cst = require('./constants')
  *  - imgData {string} (from render)
  * @param {object} opts : component options
  *  - pdftops {string or instance of Pdftops)
+ *  - inkscape {string or instance of Inkscape)
  * @param {function} reply
  *  - errorCode {number or null}
  *  - result {object}
@@ -69,7 +70,7 @@ function convert (info, opts, reply) {
       return done()
     }
 
-    inkscape.svg2emf(svg, {id: info.id}, (err, emf) => {
+    inkscape.svg2emf(svg, {id: info.id, figure: info.figure}, (err, emf) => {
       if (err) {
         errorCode = 530
         result.error = err
diff --git a/src/util/inkscape.js b/src/util/inkscape.js
index 8b6f8aef..a624535f 100644
--- a/src/util/inkscape.js
+++ b/src/util/inkscape.js
@@ -9,6 +9,7 @@ const PNG = require('pngjs').PNG
 const semver = require('semver')
 const jsdom = require('jsdom')
 const { JSDOM } = jsdom
+const tinycolor = require("tinycolor2");
 
 const PATH_TO_BUILD = path.join(os.tmpdir(), 'orca-build')
 try {
@@ -59,7 +60,15 @@ class Inkscape {
       (cb) => fs.unlink(outPath, cb)
     ], cb)
 
-    svg = this.cleanSvg(svg)
+    var bgColor
+    if(opts.figure.layout.paper_bgcolor) {
+      var color = tinycolor(opts.figure.layout.paper_bgcolor)
+      color = color.toRgb()
+      bgColor = [color.r, color.g, color.b]
+    } else {
+      bgColor = [255, 255, 255]
+    }
+    svg = this.cleanSvg(svg, bgColor)
 
     series([
       (cb) => fs.writeFile(inPath, svg, 'utf-8', cb),
@@ -72,8 +81,7 @@ class Inkscape {
     })
   }
 
-  cleanSvg (svg) {
-    var bgColor = [255, 255, 255]
+  cleanSvg (svg, bgColor) {
     const fragment = JSDOM.fragment(svg)
 
     // Remove path and rectangles that are compleletely transparent

From 5432b59214bf03ca1706094f07ed448ad1fc3fc9 Mon Sep 17 00:00:00 2001
From: Antoine Roy-Gobeil <antoine@plot.ly>
Date: Tue, 4 Dec 2018 13:47:03 -0500
Subject: [PATCH 13/24] fix lint

---
 src/util/inkscape.js | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/src/util/inkscape.js b/src/util/inkscape.js
index a624535f..86b15ee5 100644
--- a/src/util/inkscape.js
+++ b/src/util/inkscape.js
@@ -9,16 +9,13 @@ const PNG = require('pngjs').PNG
 const semver = require('semver')
 const jsdom = require('jsdom')
 const { JSDOM } = jsdom
-const tinycolor = require("tinycolor2");
+const tinycolor = require('tinycolor2')
 
 const PATH_TO_BUILD = path.join(os.tmpdir(), 'orca-build')
 try {
   fs.mkdirSync(PATH_TO_BUILD)
 } catch (e) {}
 
-const imgRegexp = /<image\s+xmlns="http:\/\/www.w3.org\/2000\/svg"\s+xlink:href="data:image\/png;base64,([^"]*)"[^>]*>/
-const xlinkHrefDataImageRegexp = /xlink:href="data:image\/png;base64,([^"]*)"/
-
 const fillUrl = /(^|; )fill: url\('#([^']*)'\);/
 const fillRgbaColor = /(^|; )fill: rgba\(([^)]*)\);/
 const fillOpacityZero = /(^|\s*)fill-opacity: 0;/
@@ -61,7 +58,7 @@ class Inkscape {
     ], cb)
 
     var bgColor
-    if(opts.figure.layout.paper_bgcolor) {
+    if (opts.figure.layout.paper_bgcolor) {
       var color = tinycolor(opts.figure.layout.paper_bgcolor)
       color = color.toRgb()
       bgColor = [color.r, color.g, color.b]
@@ -153,7 +150,7 @@ class Inkscape {
       var dataType = 'data:image/png;base64'
       var href = node.getAttribute('xlink:href')
       var parts = href.split(',')
-      if(parts[0] === dataType) {
+      if (parts[0] === dataType) {
         var pngBuffer = Buffer.from(parts[1], 'base64')
         var image = PNG.sync.read(pngBuffer)
 

From 212ed21fcab67aeda4cef2fa8462ad9bbe8d83f8 Mon Sep 17 00:00:00 2001
From: Antoine Roy-Gobeil <antoine@plot.ly>
Date: Tue, 4 Dec 2018 15:44:35 -0500
Subject: [PATCH 14/24] fix Inkscape unit test

---
 src/util/inkscape.js       | 1 +
 test/common.js             | 1 +
 test/pretest.js            | 2 ++
 test/unit/inkscape_test.js | 6 +++---
 4 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/util/inkscape.js b/src/util/inkscape.js
index 86b15ee5..2451d47f 100644
--- a/src/util/inkscape.js
+++ b/src/util/inkscape.js
@@ -57,6 +57,7 @@ class Inkscape {
       (cb) => fs.unlink(outPath, cb)
     ], cb)
 
+    // Get background color from figure's definition
     var bgColor
     if (opts.figure.layout.paper_bgcolor) {
       var color = tinycolor(opts.figure.layout.paper_bgcolor)
diff --git a/test/common.js b/test/common.js
index 28b18f7d..8cfbadcb 100644
--- a/test/common.js
+++ b/test/common.js
@@ -18,6 +18,7 @@ urls.dummy = 'http://dummy.url'
 urls.plotlyGraphMock = 'https://raw.githubusercontent.com/plotly/plotly.js/master/test/image/mocks/20.json'
 
 try {
+  mocks.figure = JSON.parse(fs.readFileSync(path.join(paths.build, 'test-mock.json'), 'utf-8'))
   mocks.svg = fs.readFileSync(path.join(paths.build, 'test-mock.svg'), 'utf-8')
   mocks.pdf = fs.readFileSync(path.join(paths.build, 'test-mock.pdf'))
 } catch (e) {}
diff --git a/test/pretest.js b/test/pretest.js
index c016f640..cc401617 100644
--- a/test/pretest.js
+++ b/test/pretest.js
@@ -1,5 +1,6 @@
 const { execSync } = require('child_process')
 const { paths } = require('./common')
+const fs = require('fs')
 
 const mock = JSON.stringify({
   data: [{
@@ -10,6 +11,7 @@ const mock = JSON.stringify({
   }
 })
 
+fs.writeFileSync(`${paths.build}/test-mock.json`, mock)
 // https://stackoverflow.com/a/31104898/392162 – "Use child_process.execSync but keep output in console"
 const execSyncArgs = { stdio: [0, 1, 2] }
 
diff --git a/test/unit/inkscape_test.js b/test/unit/inkscape_test.js
index 65e7278e..e7ff5a05 100644
--- a/test/unit/inkscape_test.js
+++ b/test/unit/inkscape_test.js
@@ -12,7 +12,7 @@ tap.test('inkscape.svg2emf', t => {
     const inkscape = new Inkscape()
     const outPath = path.join(paths.build, 'inkscape-test.emf')
 
-    inkscape.svg2emf(mocks.svg, {}, (err, result) => {
+    inkscape.svg2emf(mocks.svg, {figure: mocks.figure}, (err, result) => {
       if (err) t.fail(err)
       t.type(result, Buffer)
 
@@ -31,7 +31,7 @@ tap.test('inkscape.svg2emf', t => {
     const tmpOutPath = path.join(paths.build, 'tmp-emf')
     const tmpSvgPath = path.join(paths.build, 'tmp-svg')
 
-    inkscape.svg2emf(mocks.svg, {id: 'tmp'}, (err, result) => {
+    inkscape.svg2emf(mocks.svg, {id: 'tmp', figure: mocks.figure}, (err, result) => {
       if (err) t.fail(err)
 
       t.type(result, Buffer)
@@ -47,7 +47,7 @@ tap.test('inkscape.svg2emf', t => {
     const tmpOutPath = path.join(paths.build, 'tmp-emf')
     const tmpSvgPath = path.join(paths.build, 'tmp-svg')
 
-    inkscape.svg2emf(mocks.svg, {id: 'tmp'}, (err) => {
+    inkscape.svg2emf(mocks.svg, {id: 'tmp', figure: mocks.figure}, (err) => {
       t.throws(() => { throw err }, /Command failed/)
       t.notOk(fs.existsSync(tmpOutPath), 'clears tmp emf file')
       t.notOk(fs.existsSync(tmpSvgPath), 'clears tmp svg file')

From 37747b1248d8be7705045c77728ecdfdcec481d8 Mon Sep 17 00:00:00 2001
From: Antoine Roy-Gobeil <antoine@plot.ly>
Date: Wed, 5 Dec 2018 17:50:38 -0500
Subject: [PATCH 15/24] relax constraint for Inkscape's version: now requires
 gte 0.92.x

---
 src/util/inkscape.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/util/inkscape.js b/src/util/inkscape.js
index 2451d47f..a0fa52f3 100644
--- a/src/util/inkscape.js
+++ b/src/util/inkscape.js
@@ -212,8 +212,8 @@ class Inkscape {
       throw new Error('Inkscape is not installed')
     }
 
-    if (!this.Version() || !semver.gte(this.Version(), '0.92.3')) {
-      throw new Error('Inkscape version should be greater than or equal to 0.92.3')
+    if (!this.Version() || !semver.gte(this.Version(), '0.92.0')) {
+      throw new Error('Inkscape version should be greater than or equal to 0.92.0')
     }
   }
 }

From 315a7d6c9d6a6d1e5979148b528c79c28b491adf Mon Sep 17 00:00:00 2001
From: Antoine Roy-Gobeil <antoine@plot.ly>
Date: Wed, 5 Dec 2018 18:50:34 -0500
Subject: [PATCH 16/24] use different port for orca_serve_graph-only_test.js

---
 test/integration/orca_serve_graph-only_test.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/integration/orca_serve_graph-only_test.js b/test/integration/orca_serve_graph-only_test.js
index f2330a18..e4342029 100644
--- a/test/integration/orca_serve_graph-only_test.js
+++ b/test/integration/orca_serve_graph-only_test.js
@@ -3,7 +3,7 @@ const Application = require('spectron').Application
 const request = require('request')
 
 const { paths } = require('../common')
-const PORT = 9109
+const PORT = 9110
 const SERVER_URL = `http://localhost:${PORT}`
 
 const app = new Application({

From 48e1e11129136327df4f025109cdd4ff59363fcc Mon Sep 17 00:00:00 2001
From: Antoine Roy-Gobeil <antoine@plot.ly>
Date: Wed, 5 Dec 2018 18:50:47 -0500
Subject: [PATCH 17/24] npm install with latest npm version

---
 package-lock.json | 242 +++++++++++++++++++++++-----------------------
 1 file changed, 121 insertions(+), 121 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 0294559b..85cf16d3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -168,7 +168,7 @@
         "string-width": {
           "version": "2.1.1",
           "resolved": "https://registry.npmjs.org/string-width/-/string-width-2.1.1.tgz",
-          "integrity": "sha1-q5Pyeo3BPSjKyBXEYhQ6bZASrp4=",
+          "integrity": "sha512-nOqH59deCq9SRHlxq1Aw85Jnt4w6KvLKqWVik6oA9ZklXLNIOlqg4F2yrT1MVaTjAqvVwdfeZ7w7aCvJD7ugkw==",
           "dev": true,
           "requires": {
             "is-fullwidth-code-point": "^2.0.0",
@@ -189,7 +189,7 @@
     "ansi-escapes": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-3.1.0.tgz",
-      "integrity": "sha1-9zIHu4EgfXX9bIPxJa8m7qN4yjA=",
+      "integrity": "sha512-UgAb8H9D41AQnu/PbWlCofQVcnV4Gs2bBJi9eZPxfU/hgglFh3SMDMENRIqdr7H6XFnXdoknctFByVsCOotTVw==",
       "dev": true
     },
     "ansi-regex": {
@@ -201,7 +201,7 @@
     "ansi-styles": {
       "version": "3.2.1",
       "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
-      "integrity": "sha1-QfuyAkPlCxK+DwS43tvwdSDOhB0=",
+      "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
       "dev": true,
       "requires": {
         "color-convert": "^1.9.0"
@@ -399,7 +399,7 @@
     "asn1": {
       "version": "0.2.4",
       "resolved": "https://registry.npmjs.org/asn1/-/asn1-0.2.4.tgz",
-      "integrity": "sha1-jSR136tVO7M+d7VOWeiAu4ziMTY=",
+      "integrity": "sha512-jxwzQpLQjSmWXgwaCZE9Nz+glAG01yF1QnWgbhGwHI5A6FRIEY6IVqtHhIepHqI7/kyEyQEagBC5mBEFlIYvdg==",
       "requires": {
         "safer-buffer": "~2.1.0"
       }
@@ -412,7 +412,7 @@
     "async": {
       "version": "2.6.1",
       "resolved": "https://registry.npmjs.org/async/-/async-2.6.1.tgz",
-      "integrity": "sha1-skWiPKcZMAROxT+kaqAKPofGphA=",
+      "integrity": "sha512-fNEiL2+AZt6AlAw/29Cr0UDe4sRAHCpEHh54WMz+Bb7QfNcFw4h3loofyJpLeQs4Yx7yuqu/2dLgM5hKOs6HlQ==",
       "dev": true,
       "requires": {
         "lodash": "^4.17.10"
@@ -421,7 +421,7 @@
     "async-exit-hook": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/async-exit-hook/-/async-exit-hook-2.0.1.tgz",
-      "integrity": "sha1-i9iwJLDsmxwBzMua+dspvXF9+vM=",
+      "integrity": "sha512-NW2cX8m1Q7KPA7a5M2ULQeZ2wR5qI5PAbw5L0UOMxdioVk9PMZ0h1TmyZEkPYrCvYjDlFICusOu1dlEKAAeXBw==",
       "dev": true
     },
     "async-limiter": {
@@ -448,7 +448,7 @@
     "aws4": {
       "version": "1.8.0",
       "resolved": "https://registry.npmjs.org/aws4/-/aws4-1.8.0.tgz",
-      "integrity": "sha1-8OAD2cqef1nHpQiUXXsu+aBKVC8="
+      "integrity": "sha512-ReZxvNHIOv88FlT7rxcXIIC0fPt4KZqZbOlivyWtXLt8ESx84zd3kMC6iK5jVeS2qt+g7ftS7ye4fi06X5rtRQ=="
     },
     "babel-code-frame": {
       "version": "6.26.0",
@@ -521,13 +521,13 @@
     "bind-obj-methods": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/bind-obj-methods/-/bind-obj-methods-2.0.0.tgz",
-      "integrity": "sha1-AXgUDb57e7Z9x0iSrOWbwCR/BvA=",
+      "integrity": "sha512-3/qRXczDi2Cdbz6jE+W3IflJOutRVica8frpBn14de1mBOkzDo+6tY33kNhvkw54Kn3PzRRD2VnGbGPcTAk4sw==",
       "dev": true
     },
     "bl": {
       "version": "1.2.2",
       "resolved": "https://registry.npmjs.org/bl/-/bl-1.2.2.tgz",
-      "integrity": "sha1-oWCRFxcQPAdBDO9j71Gzl8Alr5w=",
+      "integrity": "sha512-e8tQYnZodmebYDWGH7KMRvtzKXaJHx3BbilrgZCfvyLUYdKpK1t5PSPmpkny/SgiTSCnjfLW7v5rlONXVFkQEA==",
       "dev": true,
       "requires": {
         "readable-stream": "^2.3.5",
@@ -601,7 +601,7 @@
     "boxen": {
       "version": "1.3.0",
       "resolved": "https://registry.npmjs.org/boxen/-/boxen-1.3.0.tgz",
-      "integrity": "sha1-VcbDmouljZxhrSLNh3Uy3rZlogs=",
+      "integrity": "sha512-TNPjfTr432qx7yOjQyaXm3dSR0MH9vXp7eT1BFSl/C51g+EFnOR9hTg1IreahGBmDNCehscshe45f+C1TBZbLw==",
       "dev": true,
       "requires": {
         "ansi-align": "^2.0.0",
@@ -660,7 +660,7 @@
         "string-width": {
           "version": "2.1.1",
           "resolved": "https://registry.npmjs.org/string-width/-/string-width-2.1.1.tgz",
-          "integrity": "sha1-q5Pyeo3BPSjKyBXEYhQ6bZASrp4=",
+          "integrity": "sha512-nOqH59deCq9SRHlxq1Aw85Jnt4w6KvLKqWVik6oA9ZklXLNIOlqg4F2yrT1MVaTjAqvVwdfeZ7w7aCvJD7ugkw==",
           "dev": true,
           "requires": {
             "is-fullwidth-code-point": "^2.0.0",
@@ -714,7 +714,7 @@
     "buffer-alloc": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/buffer-alloc/-/buffer-alloc-1.2.0.tgz",
-      "integrity": "sha1-iQ3ZDZI6hz4I4Q5f1RpX5bfM4Ow=",
+      "integrity": "sha512-CFsHQgjtW1UChdXgbyJGtnm+O/uLQeZdtbDo8mfUgYXCHSM1wgrVxXm6bSyrUuErEb+4sYVGCzASBRot7zyrow==",
       "dev": true,
       "requires": {
         "buffer-alloc-unsafe": "^1.1.0",
@@ -724,7 +724,7 @@
     "buffer-alloc-unsafe": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/buffer-alloc-unsafe/-/buffer-alloc-unsafe-1.1.0.tgz",
-      "integrity": "sha1-vX3CauKXLQ7aJTvgYdupkjScGfA=",
+      "integrity": "sha512-TEM2iMIEQdJ2yjPJoSIsldnleVaAk1oW3DBVUykyOLsEsFmEc9kn+SFFPz+gl54KQNxlDnAwCXosOS9Okx2xAg==",
       "dev": true
     },
     "buffer-crc32": {
@@ -742,7 +742,7 @@
     "buffer-from": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/buffer-from/-/buffer-from-1.1.1.tgz",
-      "integrity": "sha1-MnE7wCj3XAL9txDXx7zsHyxgcO8=",
+      "integrity": "sha512-MQcXEUbCKtEo7bhqEs6560Hyd4XaovZlO/k9V3hjVUF/zwW7KBVdSK4gIt/bzwS9MbR5qob+F5jusZsb0YQK2A==",
       "dev": true
     },
     "builder-util": {
@@ -892,7 +892,7 @@
     "chalk": {
       "version": "2.4.1",
       "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.1.tgz",
-      "integrity": "sha1-GMSasWoDe26wFSzIPjRxM4IVtm4=",
+      "integrity": "sha512-ObN6h1v2fTJSmUXoS3nMQ92LbDK9be4TV+6G+omQlGJFdcUX5heKi1LZ1YnRMIgwTLEj3E24bT6tYni50rlCfQ==",
       "dev": true,
       "requires": {
         "ansi-styles": "^3.2.1",
@@ -932,7 +932,7 @@
     "circular-json": {
       "version": "0.3.3",
       "resolved": "https://registry.npmjs.org/circular-json/-/circular-json-0.3.3.tgz",
-      "integrity": "sha1-gVyZ6oT2gJUp0vRXkb34JxE1LWY=",
+      "integrity": "sha512-UZK3NBx2Mca+b5LsG7bY183pHWt5Y1xts4P3Pz7ENTwGVnJOUWbRb3ocjvX7hx9tq/yTAdclXm9sZ38gNuem4A==",
       "dev": true
     },
     "clean-yaml-object": {
@@ -988,7 +988,7 @@
         "string-width": {
           "version": "2.1.1",
           "resolved": "https://registry.npmjs.org/string-width/-/string-width-2.1.1.tgz",
-          "integrity": "sha1-q5Pyeo3BPSjKyBXEYhQ6bZASrp4=",
+          "integrity": "sha512-nOqH59deCq9SRHlxq1Aw85Jnt4w6KvLKqWVik6oA9ZklXLNIOlqg4F2yrT1MVaTjAqvVwdfeZ7w7aCvJD7ugkw==",
           "dev": true,
           "requires": {
             "is-fullwidth-code-point": "^2.0.0",
@@ -1035,7 +1035,7 @@
     "color-support": {
       "version": "1.1.3",
       "resolved": "https://registry.npmjs.org/color-support/-/color-support-1.1.3.tgz",
-      "integrity": "sha1-k4NDeaHMmgxh+C9S8NBDIiUb1aI=",
+      "integrity": "sha512-qiBjkpbMLO/HL68y+lh4q0/O1MZFj2RX6X/KmMa3+gJD3z+WwI1ZzDHysvqHGS3mP6mznPckpXmw1nI9cJjyRg==",
       "dev": true
     },
     "combined-stream": {
@@ -1153,7 +1153,7 @@
     "configstore": {
       "version": "3.1.2",
       "resolved": "https://registry.npmjs.org/configstore/-/configstore-3.1.2.tgz",
-      "integrity": "sha1-xvJd767vJt8S3TNBSwAf6BpUP48=",
+      "integrity": "sha512-vtv5HtGjcYUgFrXc6Kx747B83MRRVS5R1VTEQoXvuP+kMI+if6uywV0nDGoiydJRy4yk7h9od5Og0kxx4zUXmw==",
       "dev": true,
       "requires": {
         "dot-prop": "^4.1.0",
@@ -1178,7 +1178,7 @@
     "core-js": {
       "version": "2.5.7",
       "resolved": "https://registry.npmjs.org/core-js/-/core-js-2.5.7.tgz",
-      "integrity": "sha1-+XJgj/DOrWi4QaFqky0LGDeRgU4=",
+      "integrity": "sha512-RszJCAxg/PP6uzXVXL6BsxSXx/B05oJAQ2vkJRjyjrEcNVycaqOmNb5OTxZPE3xa5gwZduqza6L9JOCenh/Ecw==",
       "dev": true
     },
     "core-util-is": {
@@ -1189,7 +1189,7 @@
     "coveralls": {
       "version": "3.0.2",
       "resolved": "https://registry.npmjs.org/coveralls/-/coveralls-3.0.2.tgz",
-      "integrity": "sha1-9aC82Qyk5k4Ii3EPqN2mQK6kiE8=",
+      "integrity": "sha512-Tv0LKe/MkBOilH2v7WBiTBdudg2ChfGbdXafc/s330djpF3zKOmuehTeRwjXWc7pzfj9FrDUTA7tEx6Div8NFw==",
       "dev": true,
       "requires": {
         "growl": "~> 1.10.0",
@@ -1203,7 +1203,7 @@
     "crc": {
       "version": "3.8.0",
       "resolved": "https://registry.npmjs.org/crc/-/crc-3.8.0.tgz",
-      "integrity": "sha1-rWAmnCyFb4wpnixMwN5FVpFAVsY=",
+      "integrity": "sha512-iX3mfgcTMIq3ZKLIsVFAbv7+Mc10kxabAGQb8HvjA1o3T1PIYprbakQ65d3I+2HGHt6nSKkM9PYjgoJO2KcFBQ==",
       "dev": true,
       "requires": {
         "buffer": "^5.1.0"
@@ -1388,7 +1388,7 @@
     "debug": {
       "version": "2.6.9",
       "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
-      "integrity": "sha1-XRKFFd8TT/Mn6QpMk/Tgd6U2NB8=",
+      "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
       "dev": true,
       "requires": {
         "ms": "2.0.0"
@@ -1415,7 +1415,7 @@
     "deep-extend": {
       "version": "0.6.0",
       "resolved": "https://registry.npmjs.org/deep-extend/-/deep-extend-0.6.0.tgz",
-      "integrity": "sha1-xPp8lUBKF6nD6Mp+FTcxK3NjMKw=",
+      "integrity": "sha512-LOHxIOaPYdHlJRtCQfDIVZtfw/ufM8+rVj649RIHzcm/vGwQRXFt6OPqIFWsm2XEMrNIEtWR64sY1LEKD2vAOA==",
       "dev": true
     },
     "deep-is": {
@@ -1426,7 +1426,7 @@
     "deepmerge": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/deepmerge/-/deepmerge-2.0.1.tgz",
-      "integrity": "sha1-JcHCTxEPuRT4AAG5JSZN138/QxI=",
+      "integrity": "sha512-VIPwiMJqJ13ZQfaCsIFnp5Me9tnjURiaIFxfz7EH0Ci0dTSQpZtSLrqOicXqEd/z2r+z+Klk9GzmnRsgpgbOsQ==",
       "dev": true
     },
     "define-properties": {
@@ -1442,7 +1442,7 @@
         "object-keys": {
           "version": "1.0.12",
           "resolved": "https://registry.npmjs.org/object-keys/-/object-keys-1.0.12.tgz",
-          "integrity": "sha1-CcU4VTd1dTEMymL1W7M0q/97PtI=",
+          "integrity": "sha512-FTMyFUm2wBcGHnH2eXmz7tC6IwlqQZ6mVZ+6dm6vZ4IQIHjs6FdNsQBuKGPuUUUY6NfJw2PshC08Tn6LzLDOag==",
           "dev": true
         }
       }
@@ -1450,7 +1450,7 @@
     "deglob": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/deglob/-/deglob-2.1.1.tgz",
-      "integrity": "sha1-0mjhaHJ3mYYujqwHBC4WWVfB874=",
+      "integrity": "sha512-2kjwuGGonL7gWE1XU4Fv79+vVzpoQCl0V+boMwWtOQJV2AGDabCwez++nB1Nli/8BabAfZQ/UuHPlp6AymKdWw==",
       "dev": true,
       "requires": {
         "find-root": "^1.0.0",
@@ -1501,7 +1501,7 @@
     "diff": {
       "version": "3.5.0",
       "resolved": "https://registry.npmjs.org/diff/-/diff-3.5.0.tgz",
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       "version": "3.0.7",
       "resolved": "https://registry.npmjs.org/tap-mocha-reporter/-/tap-mocha-reporter-3.0.7.tgz",
-      "integrity": "sha1-I15XiTtQCGHqXQkkll2t+y8F6qc=",
+      "integrity": "sha512-GHVXJ38C3oPRpM3YUc43JlGdpVZYiKeT1fmAd3HH2+J+ZWwsNAUFvRRdoGsXLw9+gU9o+zXpBqhS/oXyRQYwlA==",
       "dev": true,
       "requires": {
         "color-support": "^1.1.0",
@@ -7900,7 +7900,7 @@
         "tap-parser": {
           "version": "5.4.0",
           "resolved": "https://registry.npmjs.org/tap-parser/-/tap-parser-5.4.0.tgz",
-          "integrity": "sha1-aQfolyXXt/pq5B7ixGTD20MYiuw=",
+          "integrity": "sha512-BIsIaGqv7uTQgTW1KLTMNPSEQf4zDDPgYOBRdgOfuB+JFOLRBfEu6cLa/KvMvmqggu1FKXDfitjLwsq4827RvA==",
           "dev": true,
           "requires": {
             "events-to-array": "^1.0.1",
@@ -7913,7 +7913,7 @@
     "tap-parser": {
       "version": "7.0.0",
       "resolved": "https://registry.npmjs.org/tap-parser/-/tap-parser-7.0.0.tgz",
-      "integrity": "sha1-VNs1MC/aLCzMIZVK074issukJyE=",
+      "integrity": "sha512-05G8/LrzqOOFvZhhAk32wsGiPZ1lfUrl+iV7+OkKgfofZxiceZWMHkKmow71YsyVQ8IvGBP2EjcIjE5gL4l5lA==",
       "dev": true,
       "requires": {
         "events-to-array": "^1.0.1",
@@ -8054,13 +8054,13 @@
     "tmatch": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/tmatch/-/tmatch-4.0.0.tgz",
-      "integrity": "sha1-uheAB/ML9qcPN8ZD/KUEX7L4xEg=",
+      "integrity": "sha512-Ynn2Gsp+oCvYScQXeV+cCs7citRDilq0qDXA6tuvFwDgiYyyaq7D5vKUlAPezzZR5NDobc/QMeN6e5guOYmvxg==",
       "dev": true
     },
     "tmp": {
       "version": "0.0.33",
       "resolved": "https://registry.npmjs.org/tmp/-/tmp-0.0.33.tgz",
-      "integrity": "sha1-bTQzWIl2jSGyvNoKonfO07G/rfk=",
+      "integrity": "sha512-jRCJlojKnZ3addtTOjdIqoRuPEKBvNXcGYqzO6zWZX8KfKEpnGY5jfggJQ3EjKuu8D4bJRr0y+cYJFmYbImXGw==",
       "dev": true,
       "requires": {
         "os-tmpdir": "~1.0.2"
@@ -8069,13 +8069,13 @@
     "to-buffer": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/to-buffer/-/to-buffer-1.1.1.tgz",
-      "integrity": "sha1-STvUj2LXxD/N7TE6A9ytsuEhOoA=",
+      "integrity": "sha512-lx9B5iv7msuFYE3dytT+KE5tap+rNYw+K4jVkb9R/asAb+pbBSM17jtunHplhBe6RRJdZx3Pn2Jph24O32mOVg==",
       "dev": true
     },
     "tough-cookie": {
       "version": "2.4.3",
       "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.4.3.tgz",
-      "integrity": "sha1-U/Nto/R3g7CSWvoG/587FlKA94E=",
+      "integrity": "sha512-Q5srk/4vDM54WJsJio3XNn6K2sCG+CQ8G5Wz6bZhRZoAe/+TxjWB/GlFAnYEbkYVlON9FMk/fE3h2RLpPXo4lQ==",
       "requires": {
         "psl": "^1.1.24",
         "punycode": "^1.4.1"
@@ -8148,7 +8148,7 @@
     "type-detect": {
       "version": "4.0.8",
       "resolved": "https://registry.npmjs.org/type-detect/-/type-detect-4.0.8.tgz",
-      "integrity": "sha1-dkb7XxiHHPu3dJ5pvTmmOI63RQw=",
+      "integrity": "sha512-0fr/mIH1dlO+x7TlcMy+bIDqKPsw/70tVyeHW787goQjhmqaZe10uwLujubK9q9Lg6Fiho1KUKDYz0Z7k7g5/g==",
       "dev": true
     },
     "typedarray": {
@@ -8197,7 +8197,7 @@
     "update-notifier": {
       "version": "2.5.0",
       "resolved": "https://registry.npmjs.org/update-notifier/-/update-notifier-2.5.0.tgz",
-      "integrity": "sha1-0HRFk+E/Fh5AassdlAi3LK0Ir/Y=",
+      "integrity": "sha512-gwMdhgJHGuj/+wHJJs9e6PcCszpxR1b236igrOkUofGhqJuG+amlIKwApH1IW1WWl7ovZxsX49lMBWLxSdm5Dw==",
       "dev": true,
       "requires": {
         "boxen": "^1.2.1",
@@ -8313,7 +8313,7 @@
     "uuid": {
       "version": "3.3.2",
       "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.3.2.tgz",
-      "integrity": "sha1-G0r0lV6zB3xQHCOHL8ZROBFYcTE="
+      "integrity": "sha512-yXJmeNaw3DnnKAOKJE51sL/ZaYfWJRl1pK9dr19YFCu0ObS231AB1/LbqTKRAQ5kw8A90rA6fr4riOUpTZvQZA=="
     },
     "validate-npm-package-license": {
       "version": "3.0.1",
@@ -8346,7 +8346,7 @@
     "wdio-dot-reporter": {
       "version": "0.0.10",
       "resolved": "https://registry.npmjs.org/wdio-dot-reporter/-/wdio-dot-reporter-0.0.10.tgz",
-      "integrity": "sha1-+s+3ycWYQUmVH1nLw80HUhAc8OA=",
+      "integrity": "sha512-A0TCk2JdZEn3M1DSG9YYbNRcGdx/YRw19lTiRpgwzH4qqWkO/oRDZRmi3Snn4L2j54KKTfPalBhlOtc8fojVgg==",
       "dev": true
     },
     "webdriverio": {
@@ -8478,7 +8478,7 @@
         "string-width": {
           "version": "2.1.1",
           "resolved": "https://registry.npmjs.org/string-width/-/string-width-2.1.1.tgz",
-          "integrity": "sha1-q5Pyeo3BPSjKyBXEYhQ6bZASrp4=",
+          "integrity": "sha512-nOqH59deCq9SRHlxq1Aw85Jnt4w6KvLKqWVik6oA9ZklXLNIOlqg4F2yrT1MVaTjAqvVwdfeZ7w7aCvJD7ugkw==",
           "dev": true,
           "requires": {
             "is-fullwidth-code-point": "^2.0.0",
@@ -8546,7 +8546,7 @@
     "write-file-atomic": {
       "version": "2.3.0",
       "resolved": "https://registry.npmjs.org/write-file-atomic/-/write-file-atomic-2.3.0.tgz",
-      "integrity": "sha1-H/YVdcLipOjlENb6TiQ8zhg5mas=",
+      "integrity": "sha512-xuPeK4OdjWqtfi59ylvVL0Yn35SF3zgcAcv7rBPFHVaEapaDr4GdGgm3j7ckTwH9wHL7fGmgfAnb0+THrHb8tA==",
       "dev": true,
       "requires": {
         "graceful-fs": "^4.1.11",
@@ -8652,7 +8652,7 @@
         "string-width": {
           "version": "2.1.1",
           "resolved": "https://registry.npmjs.org/string-width/-/string-width-2.1.1.tgz",
-          "integrity": "sha1-q5Pyeo3BPSjKyBXEYhQ6bZASrp4=",
+          "integrity": "sha512-nOqH59deCq9SRHlxq1Aw85Jnt4w6KvLKqWVik6oA9ZklXLNIOlqg4F2yrT1MVaTjAqvVwdfeZ7w7aCvJD7ugkw==",
           "dev": true,
           "requires": {
             "is-fullwidth-code-point": "^2.0.0",

From c1822e2f49842914f33857b5cd593fc8bee76913 Mon Sep 17 00:00:00 2001
From: Antoine Roy-Gobeil <antoine@plot.ly>
Date: Wed, 5 Dec 2018 19:27:31 -0500
Subject: [PATCH 18/24] teardown server last, orca should reply 404 instead of
 ECONNREFUSED

---
 test/integration/orca_serve_graph-only_test.js | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/test/integration/orca_serve_graph-only_test.js b/test/integration/orca_serve_graph-only_test.js
index e4342029..e6267144 100644
--- a/test/integration/orca_serve_graph-only_test.js
+++ b/test/integration/orca_serve_graph-only_test.js
@@ -57,12 +57,6 @@ tap.test('should work for *plotly-graph* component', t => {
   })
 })
 
-tap.test('should teardown', t => {
-  app.stop()
-    .catch(t.fail)
-    .then(t.end)
-})
-
 tap.test('should not work for *plotly-thumbnail* component', t => {
   request({
     method: 'POST',
@@ -75,8 +69,15 @@ tap.test('should not work for *plotly-thumbnail* component', t => {
       }
     })
   }, (err, res) => {
-    t.equal(err.code, 'ECONNREFUSED')
-    t.equal(res, undefined, 'should be undefined')
+    if (err) t.fail(err)
+
+    t.equal(res.statusCode, 404, 'should return a HTTP 404 response')
     t.end()
   })
 })
+
+tap.test('should teardown', t => {
+  app.stop()
+    .catch(t.fail)
+    .then(t.end)
+})

From ffc9bfd2bd1806a9e1d19de6441539355faf5105 Mon Sep 17 00:00:00 2001
From: Antoine Roy-Gobeil <antoine@plot.ly>
Date: Thu, 6 Dec 2018 11:41:17 -0500
Subject: [PATCH 19/24] cache node_modules only if package-lock.json didn't
 change

---
 appveyor.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/appveyor.yml b/appveyor.yml
index c6615798..4aa3fea1 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -11,7 +11,7 @@ platform:
 #services:
 
 cache:
-  - node_modules
+  - node_modules -> package-lock.json
   - '%LOCALAPPDATA%\electron\Cache'
   - '%LOCALAPPDATA%\electron-builder\cache'
 

From e24f167205e6e2169894a95cc63cb57a3a555c75 Mon Sep 17 00:00:00 2001
From: Antoine Roy-Gobeil <antoine@plot.ly>
Date: Thu, 6 Dec 2018 12:48:05 -0500
Subject: [PATCH 20/24] install Inkscape in deployment container

---
 deployment/Dockerfile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/deployment/Dockerfile b/deployment/Dockerfile
index ca3ef3b8..ba548875 100644
--- a/deployment/Dockerfile
+++ b/deployment/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:xenial
+FROM ubuntu:bionic
 
 ####################
 # Install node and dependencies
@@ -90,7 +90,7 @@ RUN apt-get update -y && apt-get install -y subversion && \
 RUN wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add - && \
     sh -c 'echo "deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google-chrome.list' && \
     apt-get update -y && \
-    apt-get install -y google-chrome-stable xvfb poppler-utils git && \
+    apt-get install -y google-chrome-stable xvfb poppler-utils inkscape git && \
     rm -rf /var/lib/apt/lists/* && apt-get clean
 
 COPY package.json /var/www/image-exporter/

From e76c52be7e219dcb41737c26f96fd0efc2e3dccd Mon Sep 17 00:00:00 2001
From: Antoine Roy-Gobeil <antoine@plot.ly>
Date: Thu, 6 Dec 2018 13:08:36 -0500
Subject: [PATCH 21/24] improve code readability and style

---
 src/util/inkscape.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/util/inkscape.js b/src/util/inkscape.js
index a0fa52f3..e1c3eebe 100644
--- a/src/util/inkscape.js
+++ b/src/util/inkscape.js
@@ -98,7 +98,8 @@ class Inkscape {
       var m = style.match(fillOpacityZero)
 
       if (m) {
-        var rgbFill = m[1] + `fill: rgb(${bgColor[0]},${bgColor[1]},${bgColor[2]});`
+        var sep = m[1]
+        var rgbFill = `${sep}fill: rgb(${bgColor[0]},${bgColor[1]},${bgColor[2]});`
         style = style.replace(m[0], rgbFill)
         node.setAttribute('style', style)
       }
@@ -139,7 +140,7 @@ class Inkscape {
         if (rgba[3] === 0) {
           node.remove()
         } else {
-          var rgbFill = sep + 'fill: rgb(' + rgba.slice(0, 3) + ')'
+          var rgbFill = `${sep}fill: rgb(${rgba.slice(0, 3).join(',')})`
           style = style.replace(m[0], rgbFill)
           node.setAttribute('style', style)
         }

From e4ab53daff9840acc8c0ee8b54bf8ab249baf5cb Mon Sep 17 00:00:00 2001
From: Antoine Roy-Gobeil <antoine@plot.ly>
Date: Thu, 6 Dec 2018 16:23:33 -0500
Subject: [PATCH 22/24] safer code which ensures there is a figure.layout
 object

---
 src/util/inkscape.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/util/inkscape.js b/src/util/inkscape.js
index e1c3eebe..250b7a28 100644
--- a/src/util/inkscape.js
+++ b/src/util/inkscape.js
@@ -59,7 +59,7 @@ class Inkscape {
 
     // Get background color from figure's definition
     var bgColor
-    if (opts.figure.layout.paper_bgcolor) {
+    if ((opts.figure.layout || {}).paper_bgcolor) {
       var color = tinycolor(opts.figure.layout.paper_bgcolor)
       color = color.toRgb()
       bgColor = [color.r, color.g, color.b]

From b6daae1db73b7019a425e8165ed2a97eb515f96d Mon Sep 17 00:00:00 2001
From: Antoine Roy-Gobeil <antoine@plot.ly>
Date: Thu, 6 Dec 2018 16:30:58 -0500
Subject: [PATCH 23/24] revert to ubuntu:xenial, install latest Inkscape from a
 PPA

---
 deployment/Dockerfile | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/deployment/Dockerfile b/deployment/Dockerfile
index ba548875..c24b8004 100644
--- a/deployment/Dockerfile
+++ b/deployment/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:bionic
+FROM ubuntu:xenial
 
 ####################
 # Install node and dependencies
@@ -90,7 +90,7 @@ RUN apt-get update -y && apt-get install -y subversion && \
 RUN wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add - && \
     sh -c 'echo "deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google-chrome.list' && \
     apt-get update -y && \
-    apt-get install -y google-chrome-stable xvfb poppler-utils inkscape git && \
+    apt-get install -y google-chrome-stable xvfb poppler-utils git && \
     rm -rf /var/lib/apt/lists/* && apt-get clean
 
 COPY package.json /var/www/image-exporter/
@@ -109,6 +109,12 @@ RUN cd /opt && \
     ln -s monit-* monit && \
     chmod 600 /etc/monitrc
 
+####################
+# Install latest stable Inkscape
+RUN apt-get update && apt-get install -y software-properties-common python-software-properties \
+    && add-apt-repository -y ppa:inkscape.dev/stable && apt-get install -y inkscape \
+    && rm -rf /var/lib/apt/lists/* && apt-get clean
+
 ####################
 # Add entrypoint script
 COPY deployment/run_server /

From f117d367a105810ca6ce0e02269fda32aed9e8af Mon Sep 17 00:00:00 2001
From: Antoine Roy-Gobeil <antoine@plot.ly>
Date: Thu, 6 Dec 2018 16:48:16 -0500
Subject: [PATCH 24/24] run `apt-get update` prior to installing Inkscape to
 get latest version

---
 deployment/Dockerfile | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/deployment/Dockerfile b/deployment/Dockerfile
index c24b8004..c3e04467 100644
--- a/deployment/Dockerfile
+++ b/deployment/Dockerfile
@@ -112,7 +112,8 @@ RUN cd /opt && \
 ####################
 # Install latest stable Inkscape
 RUN apt-get update && apt-get install -y software-properties-common python-software-properties \
-    && add-apt-repository -y ppa:inkscape.dev/stable && apt-get install -y inkscape \
+    && add-apt-repository -y ppa:inkscape.dev/stable \
+    && apt-get update && apt-get install -y inkscape \
     && rm -rf /var/lib/apt/lists/* && apt-get clean
 
 ####################