jQuery1.4.2 $.ajax crashes IE6/7

Posted by Kenny Eliasson on Stack Overflow See other posts from Stack Overflow or by Kenny Eliasson
Published on 2010-06-15T07:47:50Z Indexed on 2010/06/15 7:52 UTC
Read the original article Hit count: 417

Filed under:

JavaScript

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jQuery

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crash

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ie6

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ie7

Hello there!

I'm having a really hard time debugging one of our latest reported bugs. The problem occurs "randomly", not on every page load, sometimes I can "click" around for a minute or two before IE6/7 crashes. By crash I mean that the IE-window shuts down and I get the option to send the crash info to Microsoft.

In FF, Chrome, Safari, IE8 everything is working perfectly.

What the page does is issuing 2 AJAX Jsonp calls and building some menus with the data returned. The data brought back can be from ~500b to approx. 35kb.

The JSON is valid (else it wouldn't have loaded at all in FF etc), and as i told previous, it works for when navigating around the site soemtimes in IE6/7.

I've tested to comment out the callbacks, still crashes. If I remove the $.ajax calls the page will work again. Whats strange is that if I downgrade to jQuery 1.3.2 everything works in all browsers including IE6/7.

I've taken the crash-logs and looked at them in WinDbg and what happens seems to be a NULL POINTER reference.

The last entries of the stack trace is as follows

mshtml!CTreePos::SourceIndex+0x9
mshtml!CMarkup::InsertElementInternal+0x3a8
mshtml!CDoc::InsertElement+0x98
mshtml!CDocument::get_implementation+0x144

Anyone having a clue what could cause this?

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