Do HTTP requests always go by TCP Connect Tunnel?

[jbourne]

How do Http requests and responses go from a client to the server?
IS a TCP Connect Tunnel always formed or is there some different mode ?

[GNU-Fan]

HTTP is independent of the underlying transport mechanism.
Theoretically it can be used with any means of communication that transport text.

[jbourne]

then what transport layer protocol does a browser use by default

[GNU-Fan]

A stream socket.
(Which then uses TCP in nearly every case.)

[Kloschüssel]

HTTP is independent of the underlying transport mechanism.
Theoretically it can be used with any means of communication that transport text.

quite true, but only quite. the transport layer must provide a reliable data flow for HTTP to work properly. i.e. if you would try HTTP over UDP, things won't work anymore as expected if the transport has small problems with packet drops etc.