Use different onload method

package.json

@@ -68,7 +68,7 @@
     "dojo-util": "^1.14.2",
     "dojo-webpack-plugin": "^2.7.7",
     "dojox": "^1.14.2",
-    "electron": "^3.0.0",
+    "electron": "^3.0.12",
     "electron-packager": "^12.0.1",
     "eslint": "^4.19.1",
     "eslint-config-airbnb-base": "^12.1.0",

src/JBrowse/main.js

@@ -63,8 +63,7 @@ function (
         },
         electronData: queryParams.electronData || (Util.isElectron() && electronRequire('electron').remote.app.getPath('userData'))
     };
-
-    window.addEventListener('load', () => {
+    dojo.addOnLoad(() => {
         // see if we can load some configuration from the data-config attribute of our container
         try {
             let elementConfig = document.getElementById(config.containerID).getAttribute('data-config')

yarn.lock

@@ -2789,10 +2789,10 @@ electron-to-chromium@^1.2.7:
   resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.73.tgz#aa67787067d58cc3920089368b3b8d6fe0fc12f6"
   integrity sha512-6PIg7v9zRoVGh6EheRF8h6Plti+3Yo/qtHobS4/Htyt53DNHmKKGFqSae1AIk0k1S4gCQvt7I2WgpbuZNcDY+g==
 
-electron@^3.0.0:
-  version "3.0.6"
-  resolved "https://registry.yarnpkg.com/electron/-/electron-3.0.6.tgz#2d7b4ed521e90c69d83ffe5696db173b0e7b2473"
-  integrity sha512-MqwvA6IM0IDvUgPo/zHasmLMn3eYhMJ2I0qTNfQtxwqdoo762UlFS+upmMgcnCXPcGMGDWi3wtZhNir9nEw1kA==
+electron@^3.0.12:
+  version "3.0.12"
+  resolved "https://registry.yarnpkg.com/electron/-/electron-3.0.12.tgz#7486ff1c60e9c22d8aadaee620695c42c9ddb2ac"
+  integrity sha512-stvGbqYzWv5qHHtjZZgA7gET3NPGLuxs68IHTrJqsqujQfXGkhMOh8tstpXl86kBdRpzZn7GaDlTWcgeFSmsPw==
   dependencies:
     "@types/node" "^8.0.24"
     electron-download "^4.1.0"