Re: XMLHttpRequest and multipart responses

> Couldn't you put it into a comment in the file?

Yes I could, but it would be a special solution for XML. I am hoping
to find a solution which I can use with any response without needing
special cases for different types.

I am going to set a Request ID in a response header field and then
cache the debug output on the server so I can fetch it via a second
request. This will work for any response type even JSON responses that
may only contain the specific JSON formatted string so it may be
loaded into a JS object easily and without modification of existing
code.