2009 Sep 11, 8:39"In the W3C Media Fragment Working Group (MFWG) we have had long discussions about the use of the URI query (”?”) or the URI fragment (”#”) addressing approach for addressing directly into media
fragments, and the diverse new HTTP headers required to serve such URI requests, considering such side conditions as the stripping-off of fragment parameters from a URI by Web browsers, or the
existence of caching Web proxies."
fragment uri via:connolly media url query http http-header