If HttpStatus == 413, refresh media limits

src/ContentMessages.js

@@ -377,9 +377,9 @@ class ContentMessages {
                 }
             }
             if (error) {
-                dis.dispatch({action: 'upload_failed', upload: upload});
+                dis.dispatch({action: 'upload_failed', upload, error});
             } else {
-                dis.dispatch({action: 'upload_finished', upload: upload});
+                dis.dispatch({action: 'upload_finished', upload});
             }
         });
     }

src/components/structures/RoomView.js

@@ -500,7 +500,10 @@ module.exports = React.createClass({
                 break;
             case 'notifier_enabled':
             case 'upload_failed':
+                // 413: File was too big or upset the server in some way.
+                if(payload.data.error.http_status === 413) {
                     this._fetchMediaLimits(true);
+                }
             case 'upload_started':
             case 'upload_finished':
                 this.forceUpdate();