IE9 causes error when you trying to read xhr props after xhr.abort(). So, we must remove onreadystatechange of xhr to prevent this errors. Also, LongPollingWrapper#_internalListen method was fixed: we must send new response after abort of previous xhr.
IE9 causes error when you trying to read xhr props after xhr.abort(). So, we must remove onreadystatechange of xhr to prevent this errors. Also, LongPollingWrapper#_internalListen method was fixed: we must send new response after abort of previous xhr.