That's a reasonable concern, but IMO one still worth the trade-off compared with IFPC. IFPC requires an IFRAME reload for every message chunk sent, not a one-time frame load. robots.txt are typically larger in size than rpc_relay.html, so I do (still) plan to make it possible for a container to configure precisely which relay is used, with robots.txt simply as a fallback.
--John On Mon, May 18, 2009 at 8:00 AM, Brian Eaton <[email protected]> wrote: > I've been playing around with /robots.txt, and I think the RMR code > might end up causing more browser traffic than we would like for > gadget to container communication under some circumstances. > > Imagine N gadgets on a page, all trying to pass a message to the > parent. Every gadget will create an iframe to <parent>/robots.txt. > If the headers on robots.txt don't explicitly allow browser caching, > that'll end up creating N server round trips. > > Or am I missing something? >

