Merge pull request #1751 from goldquest/dev_IE8-fix

Fixing IE8 errors

src/static/js/changesettracker.js

@@ -57,6 +57,7 @@ function makeChangesetTracker(scheduler, apool, aceCallbacksProvider)
         {
           changeCallback();
         }
+        catch(pseudoError) {}
         finally
         {
           changeCallbackTimeout = null;
@@ -161,6 +162,16 @@ function makeChangesetTracker(scheduler, apool, aceCallbacksProvider)
       }
       else
       {
+    	  
+        // add forEach function to Array.prototype for IE8      
+        if (!('forEach' in Array.prototype)) {
+          Array.prototype.forEach= function(action, that /*opt*/) {
+            for (var i= 0, n= this.length; i<n; i++)
+              if (i in this)
+                action.call(that, this[i], i, this);
+          };
+        }
+    	  
         // Get my authorID
         var authorId = parent.parent.pad.myUserInfo.userId;
 

src/static/js/html10n.js

@@ -79,6 +79,15 @@ window.html10n = (function(window, document, undefined) {
       return -1;
     }
   }
+  
+  // fix Array.prototype.forEach in IE
+  if (!('forEach' in Array.prototype)) {
+    Array.prototype.forEach= function(action, that /*opt*/) {
+      for (var i= 0, n= this.length; i<n; i++)
+        if (i in this)
+          action.call(that, this[i], i, this);
+    };
+  }
     
   /**
    * MicroEvent - to make any js object an event emitter (server or browser)

src/static/js/pad.js

@@ -463,7 +463,7 @@ var pad = {
     {
       try
       {
-        doc.execCommand("BackgroundImageCache", false, true);
+        document.execCommand("BackgroundImageCache", false, true);
       }
       catch (e)
       {}