Catch errors in outer too

www/common/boot2.js

@@ -43,6 +43,9 @@ define([
             console.error("Require.js threw a Script Error. This probably means you're missing a dependency for CryptPad.\nIt is recommended that the admin of this server runs `bower install && bower update` to get the latest code, then modify their cache version.\nBest of luck,\nThe CryptPad Developers");
             return void console.log();
         }
+        if (window.CryptPad_loadingError) {
+            window.CryptPad_loadingError(e);
+        }
         throw e;
     };
 

www/common/sframe-common-outer.js

@@ -123,6 +123,9 @@ define([
                     });
                     SFrameChannel.create(msgEv, postMsg, waitFor(function (sfc) {
                         Utils.sframeChan = sframeChan = sfc;
+                        window.CryptPad_loadingError = function (e) {
+                            sfc.event('EV_LOADING_ERROR', e)
+                        };
                     }));
                 });
                 window.addEventListener('message', whenReady);