Question

Since upgrading to the lastest version of jQuery from 1.4, my ajax posts no longer allow ?? (double question marks). Instead they are replaced with something like jQuery15206629880418804291_1302038490086

Using Firebug, I can see the following data sent in a post:

$.ajaxSetup({
            type: 'POST',
            contentType: 'application/json; charset=utf-8',
            dataType: 'json',
            global: false
        });

this._xhrM = $.ajax({
            url: '/services/chatroomservice.asmx/SendReceive',
            data: '{"R": "??"}',
        success: function (results) {}
};

Sent over the wire as:

{"R": "jQuery15206629880418804291_1302038490086"}

I have tried setting the traditional to true and processData to false, both had no effect.

Answer 1

Set the jsonp option to false. According to the docs that should prevent ? from being expanded to a function in jQuery 1.5+.

this._xhrM = $.ajax({
            url: '/services/chatroomservice.asmx/SendReceive',
            data: '{"R": "??"}',
            jsonp: false,
            success: function (results) {}
});