[Greasemonkey] unsafeWindow.XmlHttpRequest in Greasemonkey 0.6.4

[Julien Couvreur]

I'm receiving a number of emails from people asking me to fix my
XmlHttp-related userscripts for FF1.5/GM0.6.4, so I'm trying to
investigate a bit more.

I've now fixed the problem I had with unsafeWindow. It was indeed a
bad install. alert(unsafeWindow) now works (shows "[object
XPCNativeWrapper [object window]]").
But alert(unsafeWindow.XMLHttpRequest) is null. Is that expected? If so, why?

Basically, I have two scripts: tracing [1] and debugging. The tracing
one needs to modify the prototype of the XMLHttpRequest used by the
page and the debugging one (which is more popular) needs to replace
the XMLHttpRequest constructor in the page context also.

Any suggestions for workarounds?

Thanks,
Julien

[1] http://blog.monstuff.com/archives/images/XMLHttpRequestTracing.user.js
[2] http://blog.monstuff.com/archives/images/XMLHttpRequestDebugging.v1.1.user.js