diff --git a/talks/mvc21/package-lock.json b/talks/mvc21/package-lock.json
index 8ceab1a..8216754 100644
--- a/talks/mvc21/package-lock.json
+++ b/talks/mvc21/package-lock.json
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+          "version": "4.3.4",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.4.tgz",
+          "integrity": "sha512-PRWFHuSU3eDtQJPvnNY7Jcket1j0t5OuOsFzPPzsekD52Zl8qUfFIPEiswXqIvHWGVHOgX+7G/vCNNhehwxfkQ==",
           "dev": true,
           "requires": {
-            "ms": "0.7.2"
+            "ms": "2.1.2"
           }
         },
         "ms": {
-          "version": "0.7.2",
-          "resolved": "https://registry.npmjs.org/ms/-/ms-0.7.2.tgz",
-          "integrity": "sha1-riXPJRKziFodldfwN4aNhDESR2U=",
+          "version": "2.1.2",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
+          "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==",
           "dev": true
         }
       }
     },
-    "socket.io-client": {
-      "version": "1.7.4",
-      "resolved": "https://registry.npmjs.org/socket.io-client/-/socket.io-client-1.7.4.tgz",
-      "integrity": "sha1-7J+CA1btme9tNX8HVtZIcXvdQoE=",
-      "dev": true,
-      "requires": {
-        "backo2": "1.0.2",
-        "component-bind": "1.0.0",
-        "component-emitter": "1.2.1",
-        "debug": "2.3.3",
-        "engine.io-client": "~1.8.4",
-        "has-binary": "0.1.7",
-        "indexof": "0.0.1",
-        "object-component": "0.0.3",
-        "parseuri": "0.0.5",
-        "socket.io-parser": "2.3.1",
-        "to-array": "0.1.4"
-      },
-      "dependencies": {
-        "component-emitter": {
-          "version": "1.2.1",
-          "resolved": "https://registry.npmjs.org/component-emitter/-/component-emitter-1.2.1.tgz",
-          "integrity": "sha1-E3kY1teCg/ffemt8WmPhQOaUJeY=",
-          "dev": true
-        },
-        "debug": {
-          "version": "2.3.3",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-2.3.3.tgz",
-          "integrity": "sha1-QMRT5n5uE8kB3ewxeviYbNqe/4w=",
-          "dev": true,
-          "requires": {
-            "ms": "0.7.2"
-          }
-        },
-        "ms": {
-          "version": "0.7.2",
-          "resolved": "https://registry.npmjs.org/ms/-/ms-0.7.2.tgz",
-          "integrity": "sha1-riXPJRKziFodldfwN4aNhDESR2U=",
-          "dev": true
-        }
-      }
+    "socket.io-adapter": {
+      "version": "2.4.0",
+      "resolved": "https://registry.npmjs.org/socket.io-adapter/-/socket.io-adapter-2.4.0.tgz",
+      "integrity": "sha512-W4N+o69rkMEGVuk2D/cvca3uYsvGlMwsySWV447y99gUPghxq42BxqLNMndb+a1mm/5/7NeXVQS7RLa2XyXvYg==",
+      "dev": true
     },
     "socket.io-parser": {
-      "version": "2.3.1",
-      "resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-2.3.1.tgz",
-      "integrity": "sha1-3VMgJRA85Clpcya+/WQAX8/ltKA=",
+      "version": "4.2.1",
+      "resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-4.2.1.tgz",
+      "integrity": "sha512-V4GrkLy+HeF1F/en3SpUaM+7XxYXpuMUWLGde1kSSh5nQMN4hLrbPIkD+otwh6q9R6NOQBN4AMaOZ2zVjui82g==",
       "dev": true,
       "requires": {
-        "component-emitter": "1.1.2",
-        "debug": "2.2.0",
-        "isarray": "0.0.1",
-        "json3": "3.3.2"
+        "@socket.io/component-emitter": "~3.1.0",
+        "debug": "~4.3.1"
       },
       "dependencies": {
         "debug": {
-          "version": "2.2.0",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-2.2.0.tgz",
-          "integrity": "sha1-+HBX6ZWxofauaklgZkE3vFbwOdo=",
+          "version": "4.3.4",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.4.tgz",
+          "integrity": "sha512-PRWFHuSU3eDtQJPvnNY7Jcket1j0t5OuOsFzPPzsekD52Zl8qUfFIPEiswXqIvHWGVHOgX+7G/vCNNhehwxfkQ==",
           "dev": true,
           "requires": {
-            "ms": "0.7.1"
+            "ms": "2.1.2"
           }
         },
         "ms": {
-          "version": "0.7.1",
-          "resolved": "https://registry.npmjs.org/ms/-/ms-0.7.1.tgz",
-          "integrity": "sha1-nNE8A62/8ltl7/3nzoZO6VIBcJg=",
+          "version": "2.1.2",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
+          "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==",
           "dev": true
         }
       }
@@ -3788,12 +3570,6 @@
         }
       }
     },
-    "to-array": {
-      "version": "0.1.4",
-      "resolved": "https://registry.npmjs.org/to-array/-/to-array-0.1.4.tgz",
-      "integrity": "sha1-F+bBH3PdTz10zaek/zI46a2b+JA=",
-      "dev": true
-    },
     "tough-cookie": {
       "version": "2.3.4",
       "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.3.4.tgz",
@@ -3891,12 +3667,6 @@
       "dev": true,
       "optional": true
     },
-    "ultron": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/ultron/-/ultron-1.0.2.tgz",
-      "integrity": "sha1-rOEWq1V80Zc4ak6I9GhTeMiy5Po=",
-      "dev": true
-    },
     "underscore.string": {
       "version": "3.2.3",
       "resolved": "https://registry.npmjs.org/underscore.string/-/underscore.string-3.2.3.tgz",
@@ -4041,25 +3811,9 @@
       "dev": true
     },
     "ws": {
-      "version": "1.1.5",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-1.1.5.tgz",
-      "integrity": "sha512-o3KqipXNUdS7wpQzBHSe180lBGO60SoK0yVo3CYJgb2MkobuWuBX6dhkYP5ORCLd55y+SaflMOV5fqAB53ux4w==",
-      "dev": true,
-      "requires": {
-        "options": ">=0.0.5",
-        "ultron": "1.0.x"
-      }
-    },
-    "wtf-8": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/wtf-8/-/wtf-8-1.0.0.tgz",
-      "integrity": "sha1-OS2LotDxw00e4tYw8V0O+2jhBIo=",
-      "dev": true
-    },
-    "xmlhttprequest-ssl": {
-      "version": "1.5.3",
-      "resolved": "https://registry.npmjs.org/xmlhttprequest-ssl/-/xmlhttprequest-ssl-1.5.3.tgz",
-      "integrity": "sha1-GFqIjATspGw+QHDZn3tJ3jUomS0=",
+      "version": "8.2.3",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.2.3.tgz",
+      "integrity": "sha512-wBuoj1BDpC6ZQ1B7DWQBYVLphPWkm8i9Y0/3YdHjHKHiohOJ1ws+3OccDWtH+PoC9DZD5WOTrJvNbWvjS6JWaA==",
       "dev": true
     },
     "xtend": {
@@ -4125,12 +3879,6 @@
       "requires": {
         "fd-slicer": "~1.0.1"
       }
-    },
-    "yeast": {
-      "version": "0.1.2",
-      "resolved": "https://registry.npmjs.org/yeast/-/yeast-0.1.2.tgz",
-      "integrity": "sha1-AI4G2AlDIMNy28L47XagymyKxBk=",
-      "dev": true
     }
   }
 }
diff --git a/talks/mvc21/package.json b/talks/mvc21/package.json
index 614a4e3..5fa5f5f 100644
--- a/talks/mvc21/package.json
+++ b/talks/mvc21/package.json
@@ -37,7 +37,7 @@
     "grunt-retire": "^1.0.7",
     "grunt-zip": "~0.17.1",
     "mustache": "^2.3.0",
-    "socket.io": "^1.7.3"
+    "socket.io": "^4.5.3"
   },
   "license": "MIT"
 }
diff --git a/talks/mvc21/yarn.lock b/talks/mvc21/yarn.lock
index a0f334a..3346475 100644
--- a/talks/mvc21/yarn.lock
+++ b/talks/mvc21/yarn.lock
@@ -2,17 +2,26 @@
 # yarn lockfile v1
 
 
+"@socket.io/component-emitter@~3.1.0":
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/@socket.io/component-emitter/-/component-emitter-3.1.0.tgz#96116f2a912e0c02817345b3c10751069920d553"
+
+"@types/cookie@^0.4.1":
+  version "0.4.1"
+  resolved "https://registry.yarnpkg.com/@types/cookie/-/cookie-0.4.1.tgz#bfd02c1f2224567676c1545199f87c3a861d878d"
+
+"@types/cors@^2.8.12":
+  version "2.8.12"
+  resolved "https://registry.yarnpkg.com/@types/cors/-/cors-2.8.12.tgz#6b2c510a7ad7039e98e7b8d3d6598f4359e5c080"
+
+"@types/node@>=10.0.0":
+  version "18.11.7"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-18.11.7.tgz#8ccef136f240770c1379d50100796a6952f01f94"
+
 abbrev@1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/abbrev/-/abbrev-1.1.1.tgz#f8f2c887ad10bf67f634f005b6987fed3179aac8"
 
-accepts@1.3.3:
-  version "1.3.3"
-  resolved "https://registry.yarnpkg.com/accepts/-/accepts-1.3.3.tgz#c3ca7434938648c3e0d9c1e328dd68b622c284ca"
-  dependencies:
-    mime-types "~2.1.11"
-    negotiator "0.6.1"
-
 accepts@~1.3.4, accepts@~1.3.5:
   version "1.3.5"
   resolved "https://registry.yarnpkg.com/accepts/-/accepts-1.3.5.tgz#eb777df6011723a3b14e8a72c0805c8e86746bd2"
@@ -20,10 +29,6 @@ accepts@~1.3.4, accepts@~1.3.5:
     mime-types "~2.1.18"
     negotiator "0.6.1"
 
-after@0.8.2:
-  version "0.8.2"
-  resolved "https://registry.yarnpkg.com/after/-/after-0.8.2.tgz#fedb394f9f0e02aa9768e702bda23b505fae7e1f"
-
 ajv@^5.1.0, ajv@^5.3.0:
   version "5.5.2"
   resolved "https://registry.yarnpkg.com/ajv/-/ajv-5.5.2.tgz#73b5eeca3fab653e3d3f9422b341ad42205dc965"
@@ -47,7 +52,7 @@ amdefine@>=0.0.4:
 
 ansi-regex@^1.0.0, ansi-regex@^1.1.0:
   version "1.1.1"
-  resolved "http://registry.npmjs.org/ansi-regex/-/ansi-regex-1.1.1.tgz#41c847194646375e6a1a5d10c3ca054ef9fc980d"
+  resolved "https://registry.npmjs.org/ansi-regex/-/ansi-regex-1.1.1.tgz#41c847194646375e6a1a5d10c3ca054ef9fc980d"
 
 ansi-regex@^2.0.0:
   version "2.1.1"
@@ -116,10 +121,6 @@ array-unique@^0.3.2:
   version "0.3.2"
   resolved "https://registry.yarnpkg.com/array-unique/-/array-unique-0.3.2.tgz#a894b75d4bc4f6cd679ef3244a9fd8f46ae2d428"
 
-arraybuffer.slice@0.0.6:
-  version "0.0.6"
-  resolved "https://registry.yarnpkg.com/arraybuffer.slice/-/arraybuffer.slice-0.0.6.tgz#f33b2159f0532a3f3107a272c0ccfbd1ad2979ca"
-
 asap@^2.0.0:
   version "2.0.6"
   resolved "https://registry.yarnpkg.com/asap/-/asap-2.0.6.tgz#e50347611d7e690943208bbdafebcbc2fb866d46"
@@ -144,7 +145,7 @@ async-foreach@^0.1.3:
 
 async@1.5.2, async@^1.5.2, async@~1.5.2, async@~1.5.x:
   version "1.5.2"
-  resolved "http://registry.npmjs.org/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
+  resolved "https://registry.npmjs.org/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
 
 async@^2.6.0:
   version "2.6.1"
@@ -154,7 +155,7 @@ async@^2.6.0:
 
 async@~1.0.0:
   version "1.0.0"
-  resolved "http://registry.npmjs.org/async/-/async-1.0.0.tgz#f8fc04ca3a13784ade9e1641af98578cfbd647a9"
+  resolved "https://registry.npmjs.org/async/-/async-1.0.0.tgz#f8fc04ca3a13784ade9e1641af98578cfbd647a9"
 
 asynckit@^0.4.0:
   version "0.4.0"
@@ -181,21 +182,13 @@ aws4@^1.6.0, aws4@^1.8.0:
   version "1.8.0"
   resolved "https://registry.yarnpkg.com/aws4/-/aws4-1.8.0.tgz#f0e003d9ca9e7f59c7a508945d7b2ef9a04a542f"
 
-backo2@1.0.2:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/backo2/-/backo2-1.0.2.tgz#31ab1ac8b129363463e35b3ebb69f4dfcfba7947"
-
 balanced-match@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-1.0.0.tgz#89b4d199ab2bee49de164ea02b89ce462d71b767"
 
-base64-arraybuffer@0.1.5:
-  version "0.1.5"
-  resolved "https://registry.yarnpkg.com/base64-arraybuffer/-/base64-arraybuffer-0.1.5.tgz#73926771923b5a19747ad666aa5cd4bf9c6e9ce8"
-
-base64id@1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/base64id/-/base64id-1.0.0.tgz#47688cb99bb6804f0e06d3e763b1c32e57d8e6b6"
+base64id@2.0.0, base64id@~2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/base64id/-/base64id-2.0.0.tgz#2770ac6bc47d312af97a8bf9a634342e0cd25cb6"
 
 base@^0.11.1:
   version "0.11.2"
@@ -225,16 +218,6 @@ bcrypt-pbkdf@^1.0.0:
   dependencies:
     tweetnacl "^0.14.3"
 
-better-assert@~1.0.0:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/better-assert/-/better-assert-1.0.2.tgz#40866b9e1b9e0b55b481894311e68faffaebc522"
-  dependencies:
-    callsite "1.0.0"
-
-blob@0.0.4:
-  version "0.0.4"
-  resolved "https://registry.yarnpkg.com/blob/-/blob-0.0.4.tgz#bcf13052ca54463f30f9fc7e95b9a47630a94921"
-
 block-stream@*:
   version "0.0.9"
   resolved "https://registry.yarnpkg.com/block-stream/-/block-stream-0.0.9.tgz#13ebfe778a03205cfe03751481ebb4b3300c126a"
@@ -295,7 +278,7 @@ browserify-zlib@^0.1.4:
 
 browserslist@~0.4.0:
   version "0.4.0"
-  resolved "http://registry.npmjs.org/browserslist/-/browserslist-0.4.0.tgz#3bd4ab9199dc1b9150d4d6dba4d9d3aabbc86dd4"
+  resolved "https://registry.npmjs.org/browserslist/-/browserslist-0.4.0.tgz#3bd4ab9199dc1b9150d4d6dba4d9d3aabbc86dd4"
   dependencies:
     caniuse-db "^1.0.30000153"
 
@@ -329,10 +312,6 @@ cache-base@^1.0.1:
     union-value "^1.0.0"
     unset-value "^1.0.0"
 
-callsite@1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/callsite/-/callsite-1.0.0.tgz#280398e5d664bd74038b6f0905153e6e8af1bc20"
-
 camelcase-keys@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/camelcase-keys/-/camelcase-keys-2.1.0.tgz#308beeaffdf28119051efa1d932213c91b8f92e7"
@@ -369,7 +348,7 @@ center-align@^0.1.1:
 
 chalk@^1.0.0, chalk@^1.1.1:
   version "1.1.3"
-  resolved "http://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz#a8115c55e4a702fe4d150abd3872822a7e09fc98"
+  resolved "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz#a8115c55e4a702fe4d150abd3872822a7e09fc98"
   dependencies:
     ansi-styles "^2.2.1"
     escape-string-regexp "^1.0.2"
@@ -379,7 +358,7 @@ chalk@^1.0.0, chalk@^1.1.1:
 
 chalk@~1.0.0:
   version "1.0.0"
-  resolved "http://registry.npmjs.org/chalk/-/chalk-1.0.0.tgz#b3cf4ed0ff5397c99c75b8f679db2f52831f96dc"
+  resolved "https://registry.npmjs.org/chalk/-/chalk-1.0.0.tgz#b3cf4ed0ff5397c99c75b8f679db2f52831f96dc"
   dependencies:
     ansi-styles "^2.0.1"
     escape-string-regexp "^1.0.2"
@@ -472,7 +451,7 @@ colors@~1.1.2:
 
 combined-stream@1.0.6:
   version "1.0.6"
-  resolved "http://registry.npmjs.org/combined-stream/-/combined-stream-1.0.6.tgz#723e7df6e801ac5613113a7e445a9b69cb632818"
+  resolved "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.6.tgz#723e7df6e801ac5613113a7e445a9b69cb632818"
   dependencies:
     delayed-stream "~1.0.0"
 
@@ -484,24 +463,12 @@ combined-stream@~1.0.5, combined-stream@~1.0.6:
 
 commander@2.5.x:
   version "2.5.1"
-  resolved "http://registry.npmjs.org/commander/-/commander-2.5.1.tgz#23c61f6e47be143cc02e7ad4bb1c47f5cd5a2883"
+  resolved "https://registry.npmjs.org/commander/-/commander-2.5.1.tgz#23c61f6e47be143cc02e7ad4bb1c47f5cd5a2883"
 
-component-bind@1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/component-bind/-/component-bind-1.0.0.tgz#00c608ab7dcd93897c0009651b1d3a8e1e73bbd1"
-
-component-emitter@1.1.2:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/component-emitter/-/component-emitter-1.1.2.tgz#296594f2753daa63996d2af08d15a95116c9aec3"
-
-component-emitter@1.2.1, component-emitter@^1.2.1:
+component-emitter@^1.2.1:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/component-emitter/-/component-emitter-1.2.1.tgz#137918d6d78283f7df7a6b7c5a63e140e69425e6"
 
-component-inherit@0.0.3:
-  version "0.0.3"
-  resolved "https://registry.yarnpkg.com/component-inherit/-/component-inherit-0.0.3.tgz#645fc4adf58b72b649d5cae65135619db26ff143"
-
 concat-map@0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/concat-map/-/concat-map-0.0.1.tgz#d8a96bd77fd68df7793a73036a3ba0d5405d477b"
@@ -558,6 +525,10 @@ cookie@0.3.1:
   version "0.3.1"
   resolved "https://registry.yarnpkg.com/cookie/-/cookie-0.3.1.tgz#e7e0a1f9ef43b4c8ba925c5c5a96e806d16873bb"
 
+cookie@~0.4.1:
+  version "0.4.2"
+  resolved "https://registry.yarnpkg.com/cookie/-/cookie-0.4.2.tgz#0e41f24de5ecf317947c82fc789e06a884824432"
+
 copy-descriptor@^0.1.0:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/copy-descriptor/-/copy-descriptor-0.1.1.tgz#676f6eb3c39997c2ee1ac3a924fd6124748f578d"
@@ -566,6 +537,13 @@ core-util-is@1.0.2, core-util-is@~1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.2.tgz#b5fd54220aa2bc5ab57aab7140c940754503c1a7"
 
+cors@~2.8.5:
+  version "2.8.5"
+  resolved "https://registry.yarnpkg.com/cors/-/cors-2.8.5.tgz#eac11da51592dd86b9f06f6e7ac293b3df875d29"
+  dependencies:
+    object-assign "^4"
+    vary "^1"
+
 cross-spawn@^3.0.0:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/cross-spawn/-/cross-spawn-3.0.1.tgz#1256037ecb9f0c5f79e3d6ef135e30770184b982"
@@ -600,18 +578,6 @@ dateformat@~1.0.12:
     get-stdin "^4.0.1"
     meow "^3.3.0"
 
-debug@2.2.0:
-  version "2.2.0"
-  resolved "http://registry.npmjs.org/debug/-/debug-2.2.0.tgz#f87057e995b1a1f6ae6a4960664137bc56f039da"
-  dependencies:
-    ms "0.7.1"
-
-debug@2.3.3:
-  version "2.3.3"
-  resolved "http://registry.npmjs.org/debug/-/debug-2.3.3.tgz#40c453e67e6e13c901ddec317af8986cda9eff8c"
-  dependencies:
-    ms "0.7.2"
-
 debug@2.6.9, debug@^2.2.0, debug@^2.3.3:
   version "2.6.9"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.9.tgz#5d128515df134ff327e90a4c93f4e077a536341f"
@@ -624,6 +590,12 @@ debug@^3.1.0:
   dependencies:
     ms "^2.1.1"
 
+debug@~4.3.1, debug@~4.3.2:
+  version "4.3.4"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-4.3.4.tgz#1319f6579357f2338d3337d2cdd4914bb5dcc865"
+  dependencies:
+    ms "2.1.2"
+
 debuglog@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/debuglog/-/debuglog-1.0.1.tgz#aa24ffb9ac3df9a2351837cfb2d279360cd78492"
@@ -726,7 +698,7 @@ domutils@1.5:
 
 duplexer@^0.1.1:
   version "0.1.1"
-  resolved "http://registry.npmjs.org/duplexer/-/duplexer-0.1.1.tgz#ace6ff808c1ce66b57d1ebf97977acb02334cfc1"
+  resolved "https://registry.npmjs.org/duplexer/-/duplexer-0.1.1.tgz#ace6ff808c1ce66b57d1ebf97977acb02334cfc1"
 
 each-async@^1.0.0:
   version "1.1.1"
@@ -750,44 +722,24 @@ encodeurl@~1.0.1, encodeurl@~1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/encodeurl/-/encodeurl-1.0.2.tgz#ad3ff4c86ec2d029322f5a02c3a9a606c95b3f59"
 
-engine.io-client@~1.8.4:
-  version "1.8.5"
-  resolved "https://registry.yarnpkg.com/engine.io-client/-/engine.io-client-1.8.5.tgz#fe7fb60cb0dcf2fa2859489329cb5968dedeb11f"
-  dependencies:
-    component-emitter "1.2.1"
-    component-inherit "0.0.3"
-    debug "2.3.3"
-    engine.io-parser "1.3.2"
-    has-cors "1.1.0"
-    indexof "0.0.1"
-    parsejson "0.0.3"
-    parseqs "0.0.5"
-    parseuri "0.0.5"
-    ws "~1.1.5"
-    xmlhttprequest-ssl "1.5.3"
-    yeast "0.1.2"
-
-engine.io-parser@1.3.2:
-  version "1.3.2"
-  resolved "https://registry.yarnpkg.com/engine.io-parser/-/engine.io-parser-1.3.2.tgz#937b079f0007d0893ec56d46cb220b8cb435220a"
-  dependencies:
-    after "0.8.2"
-    arraybuffer.slice "0.0.6"
-    base64-arraybuffer "0.1.5"
-    blob "0.0.4"
-    has-binary "0.1.7"
-    wtf-8 "1.0.0"
+engine.io-parser@~5.0.3:
+  version "5.0.4"
+  resolved "https://registry.yarnpkg.com/engine.io-parser/-/engine.io-parser-5.0.4.tgz#0b13f704fa9271b3ec4f33112410d8f3f41d0fc0"
 
-engine.io@~1.8.4:
-  version "1.8.5"
-  resolved "https://registry.yarnpkg.com/engine.io/-/engine.io-1.8.5.tgz#4ebe5e75c6dc123dee4afdce6e5fdced21eb93f6"
+engine.io@~6.2.0:
+  version "6.2.0"
+  resolved "https://registry.yarnpkg.com/engine.io/-/engine.io-6.2.0.tgz#003bec48f6815926f2b1b17873e576acd54f41d0"
   dependencies:
-    accepts "1.3.3"
-    base64id "1.0.0"
-    cookie "0.3.1"
-    debug "2.3.3"
-    engine.io-parser "1.3.2"
-    ws "~1.1.5"
+    "@types/cookie" "^0.4.1"
+    "@types/cors" "^2.8.12"
+    "@types/node" ">=10.0.0"
+    accepts "~1.3.4"
+    base64id "2.0.0"
+    cookie "~0.4.1"
+    cors "~2.8.5"
+    debug "~4.3.1"
+    engine.io-parser "~5.0.3"
+    ws "~8.2.3"
 
 entities@1.0:
   version "1.0.0"
@@ -816,7 +768,7 @@ es6-promise@^4.0.3:
 
 es6-promise@~2.3.0:
   version "2.3.0"
-  resolved "http://registry.npmjs.org/es6-promise/-/es6-promise-2.3.0.tgz#96edb9f2fdb01995822b263dd8aadab6748181bc"
+  resolved "https://registry.npmjs.org/es6-promise/-/es6-promise-2.3.0.tgz#96edb9f2fdb01995822b263dd8aadab6748181bc"
 
 escape-html@~1.0.3:
   version "1.0.3"
@@ -836,7 +788,7 @@ etag@~1.8.1:
 
 eventemitter2@^0.4.9, eventemitter2@~0.4.13:
   version "0.4.14"
-  resolved "http://registry.npmjs.org/eventemitter2/-/eventemitter2-0.4.14.tgz#8f61b75cde012b2e9eb284d4545583b5643b61ab"
+  resolved "https://registry.npmjs.org/eventemitter2/-/eventemitter2-0.4.14.tgz#8f61b75cde012b2e9eb284d4545583b5643b61ab"
 
 exit@0.1.2, exit@0.1.x, exit@~0.1.1:
   version "0.1.2"
@@ -862,7 +814,7 @@ expand-tilde@^2.0.0, expand-tilde@^2.0.2:
 
 express@^4.15.2:
   version "4.16.3"
-  resolved "http://registry.npmjs.org/express/-/express-4.16.3.tgz#6af8a502350db3246ecc4becf6b5a34d22f7ed53"
+  resolved "https://registry.npmjs.org/express/-/express-4.16.3.tgz#6af8a502350db3246ecc4becf6b5a34d22f7ed53"
   dependencies:
     accepts "~1.3.5"
     array-flatten "1.1.1"
@@ -996,7 +948,7 @@ finalhandler@1.1.0:
 
 finalhandler@1.1.1:
   version "1.1.1"
-  resolved "http://registry.npmjs.org/finalhandler/-/finalhandler-1.1.1.tgz#eebf4ed840079c83f4249038c9d703008301b105"
+  resolved "https://registry.npmjs.org/finalhandler/-/finalhandler-1.1.1.tgz#eebf4ed840079c83f4249038c9d703008301b105"
   dependencies:
     debug "2.6.9"
     encodeurl "~1.0.2"
@@ -1236,7 +1188,7 @@ grunt-cli@~1.2.0:
 
 grunt-contrib-connect@^1.0.2:
   version "1.0.2"
-  resolved "http://registry.npmjs.org/grunt-contrib-connect/-/grunt-contrib-connect-1.0.2.tgz#5cf933b91a67386044273c0b2444603cd98879ba"
+  resolved "https://registry.npmjs.org/grunt-contrib-connect/-/grunt-contrib-connect-1.0.2.tgz#5cf933b91a67386044273c0b2444603cd98879ba"
   dependencies:
     async "^1.5.2"
     connect "^3.4.0"
@@ -1258,7 +1210,7 @@ grunt-contrib-cssmin@^2.1.0:
 
 grunt-contrib-jshint@^1.1.0:
   version "1.1.0"
-  resolved "http://registry.npmjs.org/grunt-contrib-jshint/-/grunt-contrib-jshint-1.1.0.tgz#369d909b2593c40e8be79940b21340850c7939ac"
+  resolved "https://registry.npmjs.org/grunt-contrib-jshint/-/grunt-contrib-jshint-1.1.0.tgz#369d909b2593c40e8be79940b21340850c7939ac"
   dependencies:
     chalk "^1.1.1"
     hooker "^0.2.3"
@@ -1424,16 +1376,6 @@ has-ansi@^2.0.0:
   dependencies:
     ansi-regex "^2.0.0"
 
-has-binary@0.1.7:
-  version "0.1.7"
-  resolved "https://registry.yarnpkg.com/has-binary/-/has-binary-0.1.7.tgz#68e61eb16210c9545a0a5cce06a873912fe1e68c"
-  dependencies:
-    isarray "0.0.1"
-
-has-cors@1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/has-cors/-/has-cors-1.1.0.tgz#5e474793f7ea9843d1bb99c23eef49ff126fff39"
-
 has-flag@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-3.0.0.tgz#b5d454dc2199ae225699f3467e5a07f3b955bafd"
@@ -1515,7 +1457,7 @@ http-errors@1.6.2:
 
 http-errors@~1.6.2:
   version "1.6.3"
-  resolved "http://registry.npmjs.org/http-errors/-/http-errors-1.6.3.tgz#8b55680bb4be283a0b5bf4ea2e38580be1d9320d"
+  resolved "https://registry.npmjs.org/http-errors/-/http-errors-1.6.3.tgz#8b55680bb4be283a0b5bf4ea2e38580be1d9320d"
   dependencies:
     depd "~1.1.2"
     inherits "2.0.3"
@@ -1558,10 +1500,6 @@ indent-string@^2.1.0:
   dependencies:
     repeating "^2.0.0"
 
-indexof@0.0.1:
-  version "0.0.1"
-  resolved "https://registry.yarnpkg.com/indexof/-/indexof-0.0.1.tgz#82dc336d232b9062179d05ab3293a66059fd435d"
-
 inflight@^1.0.4:
   version "1.0.6"
   resolved "https://registry.yarnpkg.com/inflight/-/inflight-1.0.6.tgz#49bd6331d7d02d0c09bc910a1075ba8165b56df9"
@@ -1618,7 +1556,7 @@ is-buffer@^1.1.5:
 
 is-builtin-module@^1.0.0:
   version "1.0.0"
-  resolved "http://registry.npmjs.org/is-builtin-module/-/is-builtin-module-1.0.0.tgz#540572d34f7ac3119f8f76c30cbc1b1e037affbe"
+  resolved "https://registry.npmjs.org/is-builtin-module/-/is-builtin-module-1.0.0.tgz#540572d34f7ac3119f8f76c30cbc1b1e037affbe"
   dependencies:
     builtin-modules "^1.0.0"
 
@@ -1804,13 +1742,9 @@ json-stringify-safe@~5.0.1:
   version "5.0.1"
   resolved "https://registry.yarnpkg.com/json-stringify-safe/-/json-stringify-safe-5.0.1.tgz#1296a2d58fd45f19a0f6ce01d65701e2c735b6eb"
 
-json3@3.3.2:
-  version "3.3.2"
-  resolved "https://registry.yarnpkg.com/json3/-/json3-3.3.2.tgz#3c0434743df93e2f5c42aee7b19bcb483575f4e1"
-
 jsonfile@^2.1.0:
   version "2.4.0"
-  resolved "http://registry.npmjs.org/jsonfile/-/jsonfile-2.4.0.tgz#3736a2b428b87bbda0cc83b53fa3d633a35c2ae8"
+  resolved "https://registry.npmjs.org/jsonfile/-/jsonfile-2.4.0.tgz#3736a2b428b87bbda0cc83b53fa3d633a35c2ae8"
   optionalDependencies:
     graceful-fs "^4.1.6"
 
@@ -1888,7 +1822,7 @@ livereload-js@^2.3.0:
 
 load-json-file@^1.0.0:
   version "1.1.0"
-  resolved "http://registry.npmjs.org/load-json-file/-/load-json-file-1.1.0.tgz#956905708d58b4bab4c2261b04f59f31c99374c0"
+  resolved "https://registry.npmjs.org/load-json-file/-/load-json-file-1.1.0.tgz#956905708d58b4bab4c2261b04f59f31c99374c0"
   dependencies:
     graceful-fs "^4.1.2"
     parse-json "^2.2.0"
@@ -2017,7 +1951,7 @@ mime-db@~1.36.0:
   version "1.36.0"
   resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.36.0.tgz#5020478db3c7fe93aad7bbcc4dcf869c43363397"
 
-mime-types@^2.1.12, mime-types@~2.1.11, mime-types@~2.1.17, mime-types@~2.1.18, mime-types@~2.1.19:
+mime-types@^2.1.12, mime-types@~2.1.17, mime-types@~2.1.18, mime-types@~2.1.19:
   version "2.1.20"
   resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.20.tgz#930cb719d571e903738520f8470911548ca2cc19"
   dependencies:
@@ -2035,11 +1969,11 @@ mime@1.4.1:
 
 minimist@0.0.8:
   version "0.0.8"
-  resolved "http://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"
+  resolved "https://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"
 
 minimist@^1.1.3:
   version "1.2.0"
-  resolved "http://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz#a35008b20f41383eec1fb914f4cd5df79a264284"
+  resolved "https://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz#a35008b20f41383eec1fb914f4cd5df79a264284"
 
 mixin-deep@^1.2.0:
   version "1.3.1"
@@ -2050,7 +1984,7 @@ mixin-deep@^1.2.0:
 
 mkdirp@0.5.1, "mkdirp@>=0.5 0", mkdirp@^0.5.0, mkdirp@^0.5.1, mkdirp@~0.5.1:
   version "0.5.1"
-  resolved "http://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz#30057438eac6cf7f8c4767f38648d6697d75c903"
+  resolved "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz#30057438eac6cf7f8c4767f38648d6697d75c903"
   dependencies:
     minimist "0.0.8"
 
@@ -2064,18 +1998,14 @@ morgan@^1.6.1:
     on-finished "~2.3.0"
     on-headers "~1.0.1"
 
-ms@0.7.1:
-  version "0.7.1"
-  resolved "http://registry.npmjs.org/ms/-/ms-0.7.1.tgz#9cd13c03adbff25b65effde7ce864ee952017098"
-
-ms@0.7.2:
-  version "0.7.2"
-  resolved "http://registry.npmjs.org/ms/-/ms-0.7.2.tgz#ae25cf2512b3885a1d95d7f037868d8431124765"
-
 ms@2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.0.0.tgz#5608aeadfc00be6c2901df5f9861788de0d597c8"
 
+ms@2.1.2:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.2.tgz#d09d1f357b443f493382a8eb3ccd183872ae6009"
+
 ms@^2.1.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.1.tgz#30a5864eb3ebb0a66f2ebe6d727af06a09d86e0a"
@@ -2196,18 +2126,10 @@ oauth-sign@~0.9.0:
   version "0.9.0"
   resolved "https://registry.yarnpkg.com/oauth-sign/-/oauth-sign-0.9.0.tgz#47a7b016baa68b5fa0ecf3dee08a85c679ac6455"
 
-object-assign@4.1.0:
-  version "4.1.0"
-  resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-4.1.0.tgz#7a3b3d0e98063d43f4c03f2e8ae6cd51a86883a0"
-
-object-assign@^4.0.1, object-assign@^4.1.0:
+object-assign@^4, object-assign@^4.0.1, object-assign@^4.1.0:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-4.1.1.tgz#2109adc7965887cfc05cbbd442cac8bfbb360863"
 
-object-component@0.0.3:
-  version "0.0.3"
-  resolved "https://registry.yarnpkg.com/object-component/-/object-component-0.0.3.tgz#f0c69aa50efc95b866c186f400a33769cb2f1291"
-
 object-copy@^0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/object-copy/-/object-copy-0.1.0.tgz#7e7d858b781bd7c991a41ba975ed3812754e998c"
@@ -2275,26 +2197,22 @@ once@^1.3.0:
 
 onetime@^1.0.0:
   version "1.1.0"
-  resolved "http://registry.npmjs.org/onetime/-/onetime-1.1.0.tgz#a1f7838f8314c516f05ecefcbc4ccfe04b4ed789"
+  resolved "https://registry.npmjs.org/onetime/-/onetime-1.1.0.tgz#a1f7838f8314c516f05ecefcbc4ccfe04b4ed789"
 
 opn@^4.0.0:
   version "4.0.2"
-  resolved "http://registry.npmjs.org/opn/-/opn-4.0.2.tgz#7abc22e644dff63b0a96d5ab7f2790c0f01abc95"
+  resolved "https://registry.npmjs.org/opn/-/opn-4.0.2.tgz#7abc22e644dff63b0a96d5ab7f2790c0f01abc95"
   dependencies:
     object-assign "^4.0.1"
     pinkie-promise "^2.0.0"
 
-options@>=0.0.5:
-  version "0.0.6"
-  resolved "https://registry.yarnpkg.com/options/-/options-0.0.6.tgz#ec22d312806bb53e731773e7cdaefcf1c643128f"
-
 os-homedir@^1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/os-homedir/-/os-homedir-1.0.2.tgz#ffbc4988336e0e833de0c168c7ef152121aa7fb3"
 
 os-locale@^1.4.0:
   version "1.4.0"
-  resolved "http://registry.npmjs.org/os-locale/-/os-locale-1.4.0.tgz#20f9f17ae29ed345e8bde583b13d2009803c14d9"
+  resolved "https://registry.npmjs.org/os-locale/-/os-locale-1.4.0.tgz#20f9f17ae29ed345e8bde583b13d2009803c14d9"
   dependencies:
     lcid "^1.0.0"
 
@@ -2335,24 +2253,6 @@ parse-passwd@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/parse-passwd/-/parse-passwd-1.0.0.tgz#6d5b934a456993b23d37f40a382d6f1666a8e5c6"
 
-parsejson@0.0.3:
-  version "0.0.3"
-  resolved "https://registry.yarnpkg.com/parsejson/-/parsejson-0.0.3.tgz#ab7e3759f209ece99437973f7d0f1f64ae0e64ab"
-  dependencies:
-    better-assert "~1.0.0"
-
-parseqs@0.0.5:
-  version "0.0.5"
-  resolved "https://registry.yarnpkg.com/parseqs/-/parseqs-0.0.5.tgz#d5208a3738e46766e291ba2ea173684921a8b89d"
-  dependencies:
-    better-assert "~1.0.0"
-
-parseuri@0.0.5:
-  version "0.0.5"
-  resolved "https://registry.yarnpkg.com/parseuri/-/parseuri-0.0.5.tgz#80204a50d4dbb779bfdc6ebe2778d90e4bce320a"
-  dependencies:
-    better-assert "~1.0.0"
-
 parseurl@~1.3.2:
   version "1.3.2"
   resolved "https://registry.yarnpkg.com/parseurl/-/parseurl-1.3.2.tgz#fc289d4ed8993119460c156253262cdc8de65bf3"
@@ -2453,7 +2353,7 @@ posix-character-classes@^0.1.0:
 
 postcss@^4.1.11, postcss@~4.1.12:
   version "4.1.16"
-  resolved "http://registry.npmjs.org/postcss/-/postcss-4.1.16.tgz#4c449b4c8af9df3caf6d37f8e1e575d0361758dc"
+  resolved "https://registry.npmjs.org/postcss/-/postcss-4.1.16.tgz#4c449b4c8af9df3caf6d37f8e1e575d0361758dc"
   dependencies:
     es6-promise "~2.3.0"
     js-base64 "~2.1.8"
@@ -2568,7 +2468,7 @@ read-pkg@^1.0.0:
 
 readable-stream@1.1:
   version "1.1.13"
-  resolved "http://registry.npmjs.org/readable-stream/-/readable-stream-1.1.13.tgz#f6eef764f514c89e2b9e23146a75ba106756d23e"
+  resolved "https://registry.npmjs.org/readable-stream/-/readable-stream-1.1.13.tgz#f6eef764f514c89e2b9e23146a75ba106756d23e"
   dependencies:
     core-util-is "~1.0.0"
     inherits "~2.0.1"
@@ -2577,7 +2477,7 @@ readable-stream@1.1:
 
 readable-stream@^2.0.1, readable-stream@^2.0.6, readable-stream@^2.2.2:
   version "2.3.6"
-  resolved "http://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz#b11c27d88b8ff1fbe070643cf94b0c79ae1b0aaf"
+  resolved "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz#b11c27d88b8ff1fbe070643cf94b0c79ae1b0aaf"
   dependencies:
     core-util-is "~1.0.0"
     inherits "~2.0.3"
@@ -2902,49 +2802,27 @@ snapdragon@^0.8.1:
     source-map-resolve "^0.5.0"
     use "^3.1.0"
 
-socket.io-adapter@0.5.0:
-  version "0.5.0"
-  resolved "https://registry.yarnpkg.com/socket.io-adapter/-/socket.io-adapter-0.5.0.tgz#cb6d4bb8bec81e1078b99677f9ced0046066bb8b"
-  dependencies:
-    debug "2.3.3"
-    socket.io-parser "2.3.1"
-
-socket.io-client@1.7.4:
-  version "1.7.4"
-  resolved "https://registry.yarnpkg.com/socket.io-client/-/socket.io-client-1.7.4.tgz#ec9f820356ed99ef6d357f0756d648717bdd4281"
-  dependencies:
-    backo2 "1.0.2"
-    component-bind "1.0.0"
-    component-emitter "1.2.1"
-    debug "2.3.3"
-    engine.io-client "~1.8.4"
-    has-binary "0.1.7"
-    indexof "0.0.1"
-    object-component "0.0.3"
-    parseuri "0.0.5"
-    socket.io-parser "2.3.1"
-    to-array "0.1.4"
-
-socket.io-parser@2.3.1:
-  version "2.3.1"
-  resolved "https://registry.yarnpkg.com/socket.io-parser/-/socket.io-parser-2.3.1.tgz#dd532025103ce429697326befd64005fcfe5b4a0"
-  dependencies:
-    component-emitter "1.1.2"
-    debug "2.2.0"
-    isarray "0.0.1"
-    json3 "3.3.2"
+socket.io-adapter@~2.4.0:
+  version "2.4.0"
+  resolved "https://registry.yarnpkg.com/socket.io-adapter/-/socket.io-adapter-2.4.0.tgz#b50a4a9ecdd00c34d4c8c808224daa1a786152a6"
 
-socket.io@^1.7.3:
-  version "1.7.4"
-  resolved "https://registry.yarnpkg.com/socket.io/-/socket.io-1.7.4.tgz#2f7ecedc3391bf2d5c73e291fe233e6e34d4dd00"
+socket.io-parser@~4.2.0:
+  version "4.2.1"
+  resolved "https://registry.yarnpkg.com/socket.io-parser/-/socket.io-parser-4.2.1.tgz#01c96efa11ded938dcb21cbe590c26af5eff65e5"
   dependencies:
-    debug "2.3.3"
-    engine.io "~1.8.4"
-    has-binary "0.1.7"
-    object-assign "4.1.0"
-    socket.io-adapter "0.5.0"
-    socket.io-client "1.7.4"
-    socket.io-parser "2.3.1"
+    "@socket.io/component-emitter" "~3.1.0"
+    debug "~4.3.1"
+
+socket.io@^4.5.3:
+  version "4.5.3"
+  resolved "https://registry.yarnpkg.com/socket.io/-/socket.io-4.5.3.tgz#44dffea48d7f5aa41df4a66377c386b953bc521c"
+  dependencies:
+    accepts "~1.3.4"
+    base64id "~2.0.0"
+    debug "~4.3.2"
+    engine.io "~6.2.0"
+    socket.io-adapter "~2.4.0"
+    socket.io-parser "~4.2.0"
 
 source-map-resolve@^0.5.0:
   version "0.5.2"
@@ -3087,13 +2965,13 @@ string_decoder@~1.1.1:
 
 strip-ansi@^2.0.1:
   version "2.0.1"
-  resolved "http://registry.npmjs.org/strip-ansi/-/strip-ansi-2.0.1.tgz#df62c1aa94ed2f114e1d0f21fd1d50482b79a60e"
+  resolved "https://registry.npmjs.org/strip-ansi/-/strip-ansi-2.0.1.tgz#df62c1aa94ed2f114e1d0f21fd1d50482b79a60e"
   dependencies:
     ansi-regex "^1.0.0"
 
 strip-ansi@^3.0.0, strip-ansi@^3.0.1:
   version "3.0.1"
-  resolved "http://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz#6a385fb8853d952d5ff05d0e8aaf94278dc63dcf"
+  resolved "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz#6a385fb8853d952d5ff05d0e8aaf94278dc63dcf"
   dependencies:
     ansi-regex "^2.0.0"
 
@@ -3153,7 +3031,7 @@ throttleit@^1.0.0:
 
 through@2:
   version "2.3.8"
-  resolved "http://registry.npmjs.org/through/-/through-2.3.8.tgz#0dd4c9ffaabc357960b1b724115d7e0e86a2e1f5"
+  resolved "https://registry.npmjs.org/through/-/through-2.3.8.tgz#0dd4c9ffaabc357960b1b724115d7e0e86a2e1f5"
 
 tiny-lr@^1.1.1:
   version "1.1.1"
@@ -3166,10 +3044,6 @@ tiny-lr@^1.1.1:
     object-assign "^4.1.0"
     qs "^6.4.0"
 
-to-array@0.1.4:
-  version "0.1.4"
-  resolved "https://registry.yarnpkg.com/to-array/-/to-array-0.1.4.tgz#17e6c11f73dd4f3d74cda7a4ff3238e9ad9bf890"
-
 to-object-path@^0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/to-object-path/-/to-object-path-0.3.0.tgz#297588b7b0e7e0ac08e04e672f85c1f4999e17af"
@@ -3249,10 +3123,6 @@ uglify-to-browserify@~1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/uglify-to-browserify/-/uglify-to-browserify-1.0.2.tgz#6e0924d6bda6b5afe349e39a6d632850a0f882b7"
 
-ultron@1.0.x:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/ultron/-/ultron-1.0.2.tgz#ace116ab557cd197386a4e88f4685378c8b2e4fa"
-
 unc-path-regex@^0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/unc-path-regex/-/unc-path-regex-0.1.2.tgz#e73dd3d7b0d7c5ed86fbac6b0ae7d8c6a69d50fa"
@@ -3329,7 +3199,7 @@ validate-npm-package-license@^3.0.1:
     spdx-correct "^3.0.0"
     spdx-expression-parse "^3.0.0"
 
-vary@~1.1.2:
+vary@^1, vary@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/vary/-/vary-1.1.2.tgz#2299f02c6ded30d4a5961b0b9f74524a18f634fc"
 
@@ -3393,7 +3263,7 @@ wordwrap@0.0.2:
 
 wrap-ansi@^2.0.0:
   version "2.1.0"
-  resolved "http://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz#d8fc3d284dd05794fe84973caecdd1cf824fdd85"
+  resolved "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz#d8fc3d284dd05794fe84973caecdd1cf824fdd85"
   dependencies:
     string-width "^1.0.1"
     strip-ansi "^3.0.1"
@@ -3402,20 +3272,9 @@ wrappy@1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/wrappy/-/wrappy-1.0.2.tgz#b5243d8f3ec1aa35f1364605bc0d1036e30ab69f"
 
-ws@~1.1.5:
-  version "1.1.5"
-  resolved "https://registry.yarnpkg.com/ws/-/ws-1.1.5.tgz#cbd9e6e75e09fc5d2c90015f21f0c40875e0dd51"
-  dependencies:
-    options ">=0.0.5"
-    ultron "1.0.x"
-
-wtf-8@1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/wtf-8/-/wtf-8-1.0.0.tgz#392d8ba2d0f1c34d1ee2d630f15d0efb68e1048a"
-
-xmlhttprequest-ssl@1.5.3:
-  version "1.5.3"
-  resolved "https://registry.yarnpkg.com/xmlhttprequest-ssl/-/xmlhttprequest-ssl-1.5.3.tgz#185a888c04eca46c3e4070d99f7b49de3528992d"
+ws@~8.2.3:
+  version "8.2.3"
+  resolved "https://registry.yarnpkg.com/ws/-/ws-8.2.3.tgz#63a56456db1b04367d0b721a0b80cae6d8becbba"
 
 xtend@~4.0.0:
   version "4.0.1"
@@ -3455,7 +3314,7 @@ yargs@^7.0.0:
 
 yargs@~3.10.0:
   version "3.10.0"
-  resolved "http://registry.npmjs.org/yargs/-/yargs-3.10.0.tgz#f7ee7bd857dd7c1d2d38c0e74efbd681d1431fd1"
+  resolved "https://registry.npmjs.org/yargs/-/yargs-3.10.0.tgz#f7ee7bd857dd7c1d2d38c0e74efbd681d1431fd1"
   dependencies:
     camelcase "^1.0.2"
     cliui "^2.1.0"
@@ -3467,7 +3326,3 @@ yauzl@2.4.1:
   resolved "https://registry.yarnpkg.com/yauzl/-/yauzl-2.4.1.tgz#9528f442dab1b2284e58b4379bb194e22e0c4005"
   dependencies:
     fd-slicer "~1.0.1"
-
-yeast@0.1.2:
-  version "0.1.2"
-  resolved "https://registry.yarnpkg.com/yeast/-/yeast-0.1.2.tgz#008e06d8094320c372dbc2f8ed76a0ca6c8ac419"