GET request sends Content-Type header when data on URI

[harbulot]

Hello,

The fix for ticket #4183 (between 1.3.2 and 1.4) implies that GET and HEAD ajax requests send a 'Content-Type' header when they should not, since these methods do not have a message-body. Some servers refuse GET requests with a Content-Type header.

The problem is around line 352 in src/ajax.js:

if ( s.data || origSettings && origSettings.contentType ) {
        xhr.setRequestHeader("Content-Type", s.contentType);
}

A fix could be:

if ( (s.data && type !== "GET" && type != "HEAD") || origSettings && origSettings.contentType ) {
        xhr.setRequestHeader("Content-Type", s.contentType);
}

Best wishes,

Bruno.

[harbulot]

I forgot to say that, if I specify "contentType": null explicitly as a parameter to $.ajax, Firefox does not send the Content-Type header, but Opera does (Content-Type: null, so the problem remains.

[dmethvin]

See also #6811.

[john]

Fixed  http://github.com/jquery/jquery/commit/c4e653237f258ce618ad5a9ec677917166fbed16