Kris Zyp wrote:
However, there are web apps in existence (e.g., Gmail)
that set the "connection: close" header to inform the
user-agent that the HTTP transaction is going to take
a long time.  (This is also informative for the
server.)  This allows a user-agent to not count this
connection against the RFC 2616 recommended maximum of
2 persistent connections per host.
As far as I can tell, Firefox is the only browser that regards "connection: close" as an indication that the connection should not be counted against the connection limit

What gives you that idea? I'm not actually sure since I don't know the inner workings of the network code, but I have never heard of such behavior.

And in any case Firefox 3 does not even let you set the Connection header using XHR.

/ Jonas

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