Onreadystatechange callback behaviour for XMLHttpRequest

Posted by keshav.veerapaneni on Stack Overflow See other posts from Stack Overflow or by keshav.veerapaneni
Published on 2010-05-31T11:56:12Z Indexed on 2010/05/31 12:03 UTC
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Filed under:

AJAX

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xmlhttprequest

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onreadystatechange

Hello Colleagues,

If XMLHttpRequest is used with asynchronous mode, then are the onreadystatechange callbacks for 0,1,2 states called in UI thread only or in the background thread?

And is it possible that this behaviour could be different in different browsers?

Best Regards, Keshav

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