The .ajax() request has an option called 'xhr'. I am trying to grab the filesize of a file (html) being requested with ajax. I think that the method used with XHR is getResponseHeader. How would I implement this into the 'xhr' option?
I have tried several ways, but all gave me errors on Firebug, such as that getResponseHeader was not defined. $.ajax({ ... ... xhr: function(){ alert( this.getResponseHeader('Content-Length')); }, ... ect I have tried this.getResponseHeader('Content-Length'), xhr.getResponseHeader('Content-Length'), and getResponseHeader ('Content-Length') by itself, but no luck so far. If I am way off and incorrect, what would be the best way to see if somehow the file I'm loading has changed (file size, last modified, ect) from the last request?