request canceled in IE8


we’ve some “request canceled”-problems in tests with IE8. We use wpt version 2.8 with non-virtualized agents. Same tests in Firefox doesn’t have canceled requests.


For test-instances of the shop we have even much more canceled requests (see attached waterfall). What could be the reason for cancellation?

Regards, Nils

Usually cancellations are caused by this:

I’ve never seen it that pervasive or happening to tracking beacons but I guess it’s possible if those are loading in an iFrame. It is very much an IE-specific behavior so I wouldn’t expect to see it in Firefox or Chrome.