get SENT headers in an XMLHttpRequest

Question

Trying to get the Request headers from the XHR object, but with no luck, is there a hidden method or property of that object that will expose the headers sent by the browser

Answer 1

Try using Fiddler Web Debugger.

http://www.fiddler2.com/fiddler2/

You can capture the request that was sent in any browser as well as inspect the request headers, response headers, and even copy a capture sent request and send it out as your own.