Missing http header in Ajax response

Question

I'm having an issue with some missing http headers in a Ajax response. The ajax-page (.NET) adds som additional info to the http header by using Me.Response.AddHeader("ResponseCode", mResponseCode). If I access the ajax-page directly and use httpAnalyser to check the headers, I can see that the headers are added correctly. But when I call the Ajax page through jQuery, the headers are missing.

I'm puzzled. Anyone out there that can help me?

Best regards, Steffen

Koen · Accepted Answer · 2010-06-17 13:24:49Z

1

In your complete or success method the first parameter is an XMLHttpRequest object that contains this information. You can retrieve any response header like this:

xmlHttpRequest.getResponseHeader('header-name');

answered Jun 17, 2010 at 13:24

Koen

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3 Comments

Steffen Jørgensen Over a year ago

Yes - I know. But when I try that I get an empty string, because the header that I'm accessing is not present in the http header when I call the page through Ajax. It is however present if I access the Ajax page directly.

Koen Over a year ago

You can also check the headers for AJAX calls with Firefox's Firebug add-in (using the Net tab). So you know if the header is really missing and if the problem is on the server or on the client.

Steffen Jørgensen Over a year ago

The headers was not present, but it turned out that is was a problem elsewhere which cause the problem. But thanks for trying to help me out :-)

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