jQuery's ajaxSetup - I would like to add default data for GET requests only

Question

In a ajax-driven site I have added some default data using the ajaxSetup, ala this:

var revision = \'159\';
$.ajaxSetup({
    dataType: \"text json\",
    co         


        

Answer 1

Starting jQuery 1.5, you can handle this much more elegantly via Prefilters:

var revision = '159';
$.ajaxPrefilter(function (options, originalOptions, jqXHR) {
    // do not send data for POST/PUT/DELETE
    if(originalOptions.type !== 'GET' || options.type !== 'GET') {
        return;
    }

    options.data = $.extend(originalOptions.data, { r: revision });
});

Answer 2

I think what you might be able to use is beforeSend.

var revision = '159';
$.ajaxSetup({
    dataType: "json",
    contentType: "application/x-www-form-urlencoded; charset=UTF-8",
    beforeSend: function(jqXHR, settings) {
        if(settings.type == "GET")
            settings.data = $.extend(settings.data, { ... });
        return true;
    }
});

jqXHR documentation

BeforeSend documentation as well as your settings available

I coded this blind, so I hope it gets you going in the right direction.