A parameter or an operation is not supported by the underlying object

When testing the system today, an error is reported for a normal function in Firefox. It is verified that the function is normal in IE and chrome browsers.

After debugging, we found that:

The special difference between a request and other requests lies in synchronous requests.

Error logs found on the Firefox console:

"[Exception... "A parameter or an operation is not supported by the underlying object"    code: "15" nsresult: "0x8053000f (InvalidAccessError)"  location:    https://ajax.googleapis.com/ajax/libs/jquery/2.0.0/jquery.min.js Line: 6

After troubleshooting Google,

http://stackoverflow.com/questions/16668386/cors-synchronous-requests-not-working-in-firefox

In the Ajax request

//            xhrFields: {//                withCredentials: true//            },            beforeSend: function(xhr) {              xhr.withCredentials = true;            },

After testing, the problem is solved.