Bug Tracker


Ticket #152 (closed bug: fixed)

Opened 8 years ago

Last modified 2 years ago

Events module leaves stray script element in IE

Reported by: henrah Owned by:
Priority: minor Milestone: 1.0
Component: event Version: 1.0
Keywords: Cc:
Blocking: Blocked by:


Matthias Miller's DOMReady hack creates a new script element using document.write(). After its onload event has fired, however, this element remains part of the DOM -- it will be discovered by $('script') or $('head>*'), for example.

Since this is a permanent modification of the DOM, scripts which rely on a particular order or number of elements will throw exceptions. Assumptions about the generated DOM are often unreliable anyway, but it is not hard to imagine a situation where scripts could be broken by this.

The bug is trivial to fix, however: the element just needs to delete itself once it has become unnecessary.

We can change this section: script.onreadystatechange = function() {

if ( this.readyState == "complete" )



...to this: script.onreadystatechange = function() {

if ( this.readyState != "complete" ) return; this.parentNode.removeChild(this); jQuery.ready();


...and then the problem is solved.

Change History

comment:1 Changed 8 years ago by john

  • Status changed from new to closed
  • Resolution set to fixed

Fixed in SVN rev 245.

Please follow the  bug reporting guidlines and use  jsFiddle when providing test cases and demonstrations instead of pasting the code in the ticket.


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