CODEWITHSUNDEEP
javascriptajax
Andy Weaver
Andy Weaver

Reputation: 147

CORS Headers Not Present in XMLHttpRequest

I am attempting to make an ajax call to a remote server, this is only for development purposes. I have CORS setup on my server, and as a result my response when requesting the resource through the browser looks like this.

Browser Request

As you can see the CORS headers are present, however my JavaScript request gets an error.

enter image description here

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I am confused as to why my CORS headers are not present in the JavaScript request.

Upvotes: 1

Views: 325

Answers (1)

Quentin
Quentin

Reputation: 943100

I am confused as to why my CORS headers are not present in the JavaScript request.

They are never present in the request. CORS headers are response headers. (Well, some CORS headers are request headers, Origin for example, and that is in the request headers you listed).

The response had HTTP status code 401

Presumably your server side code is only going to include the Access-Control-Allow-Origin response header when it makes a 200 OK response.

Since the request was missing the cookie, it rejected it as unauthorised.

Cross-origin XHR requests need to set withCredentials to true in order for the browser to send or accept Cookies.

Upvotes: 1

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