How to identify from which SL grid httprequest came?

Hi,
question would be how to identify SecondLife environment from which httprequest came ? According to http://wiki.secondlife.com/wiki/LlHTTPRequest i should check X-SecondLife-Shard variable in header, but i don't receive this variable in it. I receive X-SecondLife-Object-Name, X-SecondLife-Object-Key and other SL specific variables, but not shard variable.
Any suggestions are welcome

I forget where it was reported, but I recall that the Shard variable was removed some time ago. It's interesting it's still listed in the wiki. Hmmm.

Err...I'm still getting it, I think. Otherwise my security filtering would be throwing a fit. Hmm.

A quick glance at my code would seem to indicate the same thing. My php is checking the value of that header, and should not work at all if it is not present.

But now the paranoid part of me is itching to create a sanity-check test case...

.

yes, SL still sends this variable, i didn't get this variable because of workaround in my scripts(played a little bit with redirections )