Fails every time if sent from inworld prim using llHTTPRequest. Works every time using external browser.
I'm just guessing on it being related to the port number, but the 504 error is a gateway/proxy timeout.
Script excerpt is:
_url = "http://sim2556.agni.lindenlab.com:12046/cap/a21e6222-97be-2e73-b920-65823372d300/?";
_method = [HTTP_METHOD, "POST", HTTP_MIMETYPE, "application/x-www-form-urlencoded"];
_key = llHTTPRequest(_url , _method, "cmd=" + _cmd + "&o=" + _p1 + "&u=" + _p2);