> thing like the example from Alex, then the amount of work on the server
> seems rather small and avoiding sending HTTP headers seems like
> pointless micro-optimization.
True. The posts caused by the +Auto button are
POST /55319/29110032894590418~!jsForm?!chat?*Menu=+0&*Tab=+1&*ID= HTTP/1.1
Accept-Encoding: gzip, deflate
Content-Type: text/plain; charset=UTF-8
with a size of 449 bytes. This is less than the default TCP packet size
of 1152 bytes, so a headerless protcoll wouldn't save anything here.
> What about putting the log field into an iframe with automatic reload
> even better?
I don't know, I have never use iframes. But with them we again introduce
a new concept and new dependencies, which I try to avoid.
The +Auto button is more general, and I use it quite often.