Skip to main content

Bug Tracker

Side navigation

#9672 closed bug (wontfix)

Opened June 26, 2011 06:59AM UTC

Closed June 26, 2011 02:06PM UTC

Access to event.relatedTarget causes "Permission denied" exception in Firefox 3.5.x

Reported by: sereda Owned by:
Priority: low Milestone:
Component: event Version: 1.6.1
Keywords: Cc:
Blocked by: Blocking:

When jQuery handles mouseenter/mouseleave events and accesses relatedTarget property, it may cause permission exception in Firefox 3.5.x. (Tested on 3.5.7)

This happens when the relatedTarget is a XUL elemented inserted into DOM - like a scrollbar (not sure how it works exactly).

This is similar to other bugs like #4469, and jQuery has some workaround code (for example, at "var withinElement" near line 3161 @ version 1.6.1) for some cases, however, the following sample code still throws exceptions.

Reproduction sequence:

1. Open code snippet below on Firefox 3.5.7.

2. Move mouse over yellow area and then over to a scrollbar.

3. The exception in the console says "'''Permission denied to access property 'nodeType' from a non-chrome context''' if ( selector.nodeType ) {"

<script src=""></script>
  $(function() {
    window.onerror = function(e) { window.alert(e); };
    var i = 0;
    $('body').delegate('div', 'mouseleave', function() {
<input type="text" id="info">
<div style="overflow: scroll; height: 100px; width: 300px" id="x">
  <div id="y" style="background: #ffc; height: 100px; width: 300px"></div>
Attachments (0)
Change History (3)

Changed June 26, 2011 07:04AM UTC by sereda comment:1

Changed June 26, 2011 07:08AM UTC by sereda comment:2

The bug is ''not'' reproducing on Firefox 3.6.18

Changed June 26, 2011 02:06PM UTC by rwaldron comment:3

component: unfiledevent
priority: undecidedlow
resolution: → wontfix
status: newclosed

Firefox 3.5 is obsolete and no longer supported in terms of writing new code to satisfy edge case bugs .