What's Application.webSecurityHostUrl for?

While trying to create a routine to check whether there’s internet connection from a webplayer or not (basically going on from here and here, although I’m much closer to jumping out the window than to finding a solution) MonoDevelop spitted Appplication.webSecurityHostUrl through code completion, but I can’t find it in the docs (maybe I need more coffee). Any of you guys know what it is used for? Maybe it has to do with the Security Sandbox?

@Graham Dunnett answered in the forums a couple weeks ago:

It’s intended to be undocumented. It’s
basically the URL that the game is
hosted on, or the value you’ve set in
the editor.