I just looked at the response header and I found what may be the reason. Is there a “s” missing at “service.php” ?
X-XRDS-Location:http://myCMS.com/index.php/service.php?xrds
Shouldn’t it be ->
X-XRDS-Location:http://myCMS.com/index.php/serviceS.php?xrds ??
Nevermind, I just read this this thread so this is not the problem.