In the process of identifying https://bugzilla.mozilla.org/show_bug.cgi?id=901590, we found this may need IID revved. Based on my lookup in hg looks like this file was last touched due to : hg log content/base/public/nsIXMLHttpRequest.idl changeset: 146411:708f6cd81acb user: James Kitchener <jkitch.bug@gmail.com> date: Thu Jun 13 01:20:10 2013 -0400 summary: Bug 796850 - Change XMLHttpRequest interface to support ByteString r=bz Hence ccing folks who can help. Please note this needs to be resolved before firefox 24 Beta1 goes to build today.

That patch changed nsIXMLHttpRequestEventTarget and revved the IID on it. Perhaps the script. Perhaps the script gets confused by multiple interfaces defined in one idl file?

If you rev nsIXMLHttpRequestEventTarget the things that inherit from it need to be changed too.

The patch changed nsIXMLHttpRequest and updated the uuid of nsIXMLHttpRequestEventTarget

Oh, you're right. I misread the patch =(

(In reply to David Zbarsky (:dzbarsky) from comment #1) > That patch changed nsIXMLHttpRequestEventTarget and revved the IID on it. > Perhaps the script. Perhaps the script gets confused by multiple interfaces > defined in one idl file? While it looks like comments 3 and 4 established this isn't the case here, it is entirely possible that the script can get confused from time to time. As such, I'd like to put a plug in to assist in development of the script: https://github.com/jwir3/checkiid Please feel free to submit pull requests if you find something wrong with it, or you think that a feature should be added to support more complicated cases.

https://hg.mozilla.org/integration/mozilla-inbound/rev/37e7674e4737 https://hg.mozilla.org/releases/mozilla-aurora/rev/4d1bee1f678e https://hg.mozilla.org/releases/mozilla-beta/rev/ac6a028198c0

Assuming no QA needed here. Please remove [qa-] from the whiteboard and add the verifyme keyword if this needs QA.