From 8f429700dad00bc41b702092e0d794e71e9dc2e4 Mon Sep 17 00:00:00 2001
From: Colin <colin.diesh@gmail.com>
Date: Tue, 6 Feb 2018 15:41:33 -0500
Subject: [PATCH] Global require.on error handler

---
 index.html                               | 3 +++
 src/JBrowse/Browser.js                   | 6 ------
 src/JBrowse/View/Track/CanvasFeatures.js | 6 ------
 3 files changed, 3 insertions(+), 12 deletions(-)

diff --git a/index.html b/index.html
index 13e842fe10..82254b9fef 100644
--- a/index.html
+++ b/index.html
@@ -109,6 +109,9 @@
 
                    // create a JBrowse global variable holding the JBrowse instance
                    JBrowse = new Browser( config );
+                   require.on('error', function(error) {
+                       JBrowse.fatalError('Failed to load resource: '+error.info[0]);
+                   });
         });
     </script>
 
diff --git a/src/JBrowse/Browser.js b/src/JBrowse/Browser.js
index 09b566e10c..5814e44da0 100644
--- a/src/JBrowse/Browser.js
+++ b/src/JBrowse/Browser.js
@@ -320,15 +320,9 @@ initPlugins: function() {
             return new Deferred();
         });
 
-        var handler = require.on("error", function(error) {
-            console.error(error);
-            deferred.reject('A resource failed to load '+error.src + ':' + error.info[0]);
-        });
-
         // fire the "all plugins done" deferred when all of the plugins are done loading
         (new DeferredList( pluginDeferreds ))
             .then( function() {
-            handler && handler.remove();
             deferred.resolve({success: true});
         });
 
diff --git a/src/JBrowse/View/Track/CanvasFeatures.js b/src/JBrowse/View/Track/CanvasFeatures.js
index e5821b5565..549809151e 100644
--- a/src/JBrowse/View/Track/CanvasFeatures.js
+++ b/src/JBrowse/View/Track/CanvasFeatures.js
@@ -322,14 +322,8 @@ return declare(
             var thisB = this;
             this.glyphsBeingLoaded[glyphClassName] = [callback];
 
-            var handler = require.on("error", function(error) {
-                console.error(error);
-                errorCallback('A resource failed to load '+error.src + ':' + error.info[0]);
-            });
 
             require( [glyphClassName], function( GlyphClass ) {
-
-                         handler && handler.remove();
                          // if this require came back after we are already destroyed, just ignore it
                          if( thisB.destroyed )
                              return;