Merge pull request #219 from jnugh/forceReload

Workaround: Invalidate cache of the main page on load

CHANGELOG.md

@@ -12,6 +12,7 @@ Release date: TBD
 - Changed display of unread messages on the team tabbar, they are now shown as bold text
 - Reload only the selected tab and keep its URL on "Reload" and "Clear Cache and Reload".
 - Disabled `eval()` function for security improvements.
+- Invalidate cache before load, to make server upgrades easy
 
 #### Windows
 - Update Mattermost icon for desktop notifications in Windows 10.

src/browser/index.jsx

@@ -312,7 +312,8 @@ var MattermostView = React.createClass({
 
     webview.addEventListener('did-fail-load', function(e) {
       console.log(thisObj.props.name, 'webview did-fail-load', e);
-      if (e.errorCode === -3) { // An operation was aborted (due to user action).
+      if (e.errorCode === -3 || // An operation was aborted (due to user action).
+        e.errorCode === -300) { //The operation was aborted to invalidate application cache
         return;
       }
 
@@ -349,6 +350,13 @@ var MattermostView = React.createClass({
       }
     });
 
+    webview.addEventListener("did-start-loading", function() {
+      if (!webview.cacheInvalidated) {
+        webview.reloadIgnoringCache();
+        webview.cacheInvalidated = true;
+      }
+    });
+
     webview.addEventListener("dom-ready", function() {
       // webview.openDevTools();