XML HTTP request fails, CURL works

I checked with one of the developers.  He says that they receive the request as an http request whether it's transported by curl or an activeXobject and don't even use the MS objects.  So my theory about that seems less likely though I still need to confirm what framework if any they are using to handle the http requests.



I have downloaded Fiddler and attempted to have it intercept the request but have not yet succeeded.     My understanding is that wireshark cannot deal with HTTPS, is that correct? 



Thanks all.