I have a set of simple HTML pages that I'm using for a Facebook application, hosted on IIS (6, most likely, but possibly 7. My client is irritatingly withholding on details).
For reasons passing understanding, Facebook must make POST requests when it tries to load a Pages tab. The POST request goes to a static .htm file on the site which of course immediately spits back 405 Method Not Allowed.
My question is this: for IIS 6 or 7, is there a simple way to configure it to permit responding to POST requests with static .htm pages, preferably just within that folder? What are the performance implications?