fixed #12009: Export JS errors in IE7

docs/changelog/7.x.x.txt

@@ -1,4 +1,5 @@
 7.10.7
+ - fixed #12009: Export JS errors in IE7
  - added #11968: use the language override in the registration form (Jukka Raimovaara / Mentalhouse Oy)
  - Changed Carousel to use TinyMCE with WebGUI plugins
  - fixed #11984: No JS allows invalid dates in Event asset

lib/WebGUI/Fork/ProgressTree.pm

@@ -95,7 +95,7 @@ my $template = <<'TEMPLATE';
         }
         tree = document.getElementById('tree');
         tree.innerHTML = '';
-        _.each(JSON.parse(data.status), function (root) {
+        _.each(YAHOO.lang.JSON.parse(data.status), function (root) {
             recurse(root, tree);
         });
         bar.update(finished, total);