Got rid of strange animation when the bubble is resized while reloading on Safari

safari/ext/popup.js

Index: safari/ext/popup.js
===================================================================
--- a/safari/ext/popup.js
+++ b/safari/ext/popup.js
@@ -9,11 +9,13 @@
   var backgroundPage = safari.extension.globalPage.contentWindow;
   var readyState = backgroundPage.document.readyState;
   var activeTab = safari.application.activeBrowserWindow.activeTab;
+  var stopResizing = function() {};
 
   safari.self.addEventListener("popover", function()
   {
     if (activeTab != safari.application.activeBrowserWindow.activeTab || readyState != "complete")
     {
+      stopResizing();
       document.documentElement.style.display = "none";
       document.location.reload();
     }
@@ -36,13 +38,26 @@
     var MutationObserver = window.MutationObserver || window.WebKitMutationObserver;
     if (MutationObserver)
     {
-      new MutationObserver(updateSize).observe(document, {
+      var mo = new MutationObserver(updateSize);
+      mo.observe(document, {
         childList: true, attributes: true,
         characterData: true, subtree: true
       });
+
+      stopResizing = function()
+      {
+        mo.disconnect();
+      };
     }
     else
+    {
       document.addEventListener("DOMSubtreeModified", updateSize);
+
+      stopResizing = function()
+      {
+        document.removeEventListener("DOMSubtreeModified", updateSize);
+      };
+    }
   });