LearnBoost/socket.io — pull request #806 by mixu (2012-03-27 23:46:20+00:00)
Title: Fix "syntax error" message on FF, resulting from FF trying to parse the POST result as XML due to it not having a response content-type

Firefox will try to parse the response from xhr POST requests, causing a syntax error message in the Web Console. Basically an addition to https://github.com/LearnBoost/socket.io/pull/501 which fixed this for GETs but not for POSTs.