Tim, Try wrapping a try/catch around it to see if there any untrapped error:
try { your stuff } catch(e) { alert(e.message?e.message:e); } Also, if you are using FireFox, install FireBug debugger plugin which will give you alot of debugging information with the ajax call. -- HLS On Sep 26, 2:44 pm, Tim W <[EMAIL PROTECTED]> wrote: > Anyone have any idea why this code works in 1.1.4 and not in 1.2.1? > > The header apparently does not get sent... > (using in a Ruby on Rails app where setting this head RoR responds > with the proper js template) > > $.ajax({ > url: event.target.href, > dataType: "script", > beforeSend: function(xhr) > {xhr.setRequestHeader("Accept", "text/javascript");}, > success: function() { } > }); > > Thanks