Comment #0
Problem/Motivation
There is a bug in JQuery UI CSS Framework 1.8.7. On line 33..ui-widget :active { outline: none; }
This was causing several pages to freeze on Chrome, Moz, and IE.
I discovered it when I enabled CDN and Facets API on a directory. The directory landing page would freeze; /people. However sub-pages would work fine; /people/filter, /people/person.
Linux, Drupal 7.23, Drupal 7.x-dev
Proposed resolution
The space between 'widget' and ':' should be removed..ui-widget:active { outline: none; }
Reference: http://bugs.jqueryui.com/ticket/7751
Remaining tasks
I would think creating a patch would be necessary.