[wp-trac] Re: [WordPress Trac] #8957: 100% CPU, unresponsive javascript when leaving admin "Edit Posts" and "Edit Post" pages

[WordPress Trac]

#8957: 100% CPU, unresponsive javascript when leaving admin "Edit Posts" and "Edit
Post" pages
-------------------------------+--------------------------------------------
 Reporter:  _timk              |        Owner:  azaozz
     Type:  defect (bug)       |       Status:  new   
 Priority:  normal             |    Milestone:  2.8   
Component:  JavaScript         |      Version:  2.7   
 Severity:  major              |   Resolution:        
 Keywords:  reporter-feedback  |  
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Comment (by _timk):

 Hmmm...  1.3.1 almost solves the problem.  They've changed the unloader:

 {{{
 // Prevent memory leaks in IE
 // And prevent errors on refresh with events like mouseover in other
 browsers
 // Window isn't included so as not to unbind existing unload events
 jQuery( window ).bind( 'unload', function(){
  for ( var id in jQuery.cache )
    // Skip the window
    if ( id != 1 && jQuery.cache[ id ].handle )
      jQuery.event.remove( jQuery.cache[ id ].handle.elem );
 });
 }}}

 Looks like they've changed their internal event handling over to the live-
 style architecture that's new with 1.3, so they're keeping a list of the
 events that need to be unbound.

 There's little delay on typical navigation between the post list pages and
 edit pages with 1.3.1, but the delay comes back if you use the Quick Edit
 function on the Edit Posts page, then navigate away.  I'd imagine events
 are being attached to the category checkboxes for something to do with the
 edit form, and then they have to be unbound on unload.

 Are there plans to move WordPress to jQuery 1.3.x?

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Ticket URL: <http://trac.wordpress.org/ticket/8957#comment:10>
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