From c987fdfbe8ff590687d57547b7174c157bdf3ada Mon Sep 17 00:00:00 2001
From: Pete Feltham <dev@felthy.com>
Date: Thu, 4 May 2017 12:48:37 +1000
Subject: [PATCH] Prevent the timeout Promise from being rejected in
 NativeFontWatchRunner after the loader promise has already resolved; to
 prevent Chrome DevTools from pausing. Fixes #362

---
 src/core/nativefontwatchrunner.js | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/src/core/nativefontwatchrunner.js b/src/core/nativefontwatchrunner.js
index 55f360d5..d6f46365 100644
--- a/src/core/nativefontwatchrunner.js
+++ b/src/core/nativefontwatchrunner.js
@@ -51,11 +51,16 @@ goog.scope(function () {
       check();
     });
 
-    var timer = new Promise(function (resolve, reject) {
-      setTimeout(reject, that.timeout_);
-    });
+    var timeoutId = null,
+      timer = new Promise(function (resolve, reject) {
+        timeoutId = setTimeout(reject, that.timeout_);
+      });
 
     Promise.race([timer, loader]).then(function () {
+      if (timeoutId) {
+        clearTimeout(timeoutId);
+        timeoutId = null;
+      }
       that.activeCallback_(that.font_);
     }, function () {
       that.inactiveCallback_(that.font_);