4

I am trying to add a completely custom HTTP header - in this case as an example - Header=dog with value=cat. When I run this, in stead of getting a new header, it appends dog to the values in access-control-request-headers? How do I get a new custom header?

Code:

            HR = new XMLHttpRequest();
            HR.onload = function (e) {
                    }
            HR.open("GET", URI);
            HR.setRequestHeader('dog', 'cat');
            HR.send();

Request headers as viewed through Chrome developer tools: 

access-control-request-headers: origin, dog
access-control-request-method: GET
origin: http://localhost:8888
accept-encoding: gzip,deflate,sdch
accept-language: en-US,en;q=0.8
user-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/28.0.1500.95 Safari/537.36
:path: /
accept: */*
:version: HTTP/1.1
cache-control: max-age=0
referer: http://localhost:8888/x.html
:scheme: https
:method: OPTIONS
Response Headersview source
access-control-allow-headers:origin, dog
access-control-allow-methods:OPTIONS
access-control-allow-origin:*
access-control-max-age:300
cache-control:private, no-cache, no-store, must-revalidate
content-length:0
Improve this question
1
Related questions
3
How to Set Authorization HTTP Header with Javascript
5
header restrictions with XHR
1
XMLHTTPResquest.setRequestHeader() is not adding custom page headers
Load 7 more related questions Show fewer related questions

0

Reset to default

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Start asking to get answers

Find the answer to your question by asking.

Ask question

Explore related questions

See similar questions with these tags.