How to remove HTTP specific headers in Javascript

Is it possible to, before sending a http message, remove some specific http headers using javascript / XmlHttpRequest ?

I'm using a proprietary browser, so there's no way to do it using browser specific solution.

For example, I want to remove the header 'Authorization' before send the message

POST /social/rpc?oauth_version=1.0& ... HTTP/1.1

Accept: text/html, image/png, image/*, */*
Accept-Language: ko
Author开发者_开发百科ization: Basic Og==
Host: test.myhost.com

Regards

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You could use the setRequestHeader method of the XmlHttpRequest object assuming your browser supports it, It is part of the W3C spec. It is also implemented by IE.

var req = new XMLHttpRequest();
req.setRequestHeader("Authorization", "");

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When I use jquery-file-upload, and want to remove the header in the options method, setting it to null or '' doesn't work for me. I use this instead:

req.setRequestHeader("Authorization");

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Never done it, but in theory you could try:

xhr.setRequestHeader('Authorization', null);

There's also an unspecified removeRequestHeader() function in some implementations, you may want to give it a try as well.

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Adam's answer didn't work for me. However, the following did:

xhr.setRequestHeader('Authorization', ' ');

notice, second parameter is a string containing a space instead of empty space. It does not remove header completely, but sets it to the empty string, which might be enough for some cases.