I was having a frustrating issue with Rails’ new cookie-based authenticity token and respond_to.

Interestingly enough, just before I found this page I was wishing there was more documentation for jQuery’s beforeSend attribute. So this little bit:

beforeSend: function(xhr) {xhr.setRequestHeader(“Accept”, “text/javascript”);}

Was like a holy grail for me. Thanks again!

I found out that the current JQuery version (> 1.1.2) breaks the above request with

url: this.href,
and
dataType: “script”,
and
xhr.setRequestHeader(“Accept”, “text/javascript”);

this.href contains the whole url including the host part thus it seems like a remote url. With remote urls JQuery doesn’t do a XHTTPRequest but appends a tag to the DOM, which doesn’t send the manually set request headers.

Any solution for this problem?

Laurens