I’ve not had problems specific to IE6/7 as far as I know, but I did get a few stream errors when I was firing off too many requests at once. As it happens, Im also using a Python backend. What errors are you getting?

I found it useful to install this tool – http://www.charlesproxy.com/ – to help me figure out what was going on with my service calls when they were failing.

I have found before that IE will stutter if trying to make more than two calls to the same domain simultaneously, which may or may not be the problem I guess.

I started structuring my service calls a little differently in the end so as not to flood the service and haven’t had any problems yet. I’m working on a Mac though, so I’ve not tested it massively in IE 6/7 since making the changes, but might give it a try now to see if I experience the same issues.

Very cool post. I am using PureMVC, as3-rpclib and flex to talk to a Python back end, have you hit any issues with IE 6 & IE 7?

I found that we are getting stream errors occassionally with both those browsers. Especially if requests are done in quick succession.

PS: Its not the cache bug because POSTs don’t use cache and the as3-rpclib uses POSTS for the xmlrpc.