I found a mention of fragment identifier and the # separator in RFC 2396 [1], but I'm still looking for the discussion of the ? and | separator (especially, whether they require/allow the entire resource to be downloaded first or not and exactly where/by whom the bit after the | or ? should get processed). Can someone give pointers to the specs that answer these questions? (I've already looked at RFC 1738, 1808, and 2396.) Thanks.
[1] ftp://ftp.ietf.org/rfc/rfc2396.txt
Eve -- Eve Maler +1 781 442 3190 Sun Microsystems XML Technology Center eve.maler @ east.sun.com