Mozilla: Errors in the handling of CORS preflight request headers (MFSA 2015-111)

Mozilla Firefox before 41.0 and Firefox ESR 38.x before 38.3 allow remote attackers to bypass CORS preflight protection mechanisms by leveraging 1 duplicate cache-key generation or 2 retrieval of a value from an incorrect HTTP Access-Control- response header...

XITAMI invalid request endless loop

If HTTP header doesn't contain ':' server goes into endless loop...