[whatwg] why double downloading of ogg videos ?

Robert O'Callahan robert at ocallahan.org
Sat Apr 17 00:36:01 PDT 2010


This is an implementation issue rather than a spec issue. It's basically
just because of the way the Firefox network cache works. When we play an Ogg
video we generally don't download the data in a single continuous HTTP GET;
if the server supports byte Range requests, we actually seek to various
places in the stream at different times to fetch metadata etc. So the
network cache never sees a request that returns the complete resource, and
never caches it. We do have a special "media cache" that's good at caching
fetched media data, but "Save As" doesn't know about the media cache. We
could fix that, but it would be somewhat complex and to be honest it's
probably not worth it.

Rob
-- 
"He was pierced for our transgressions, he was crushed for our iniquities;
the punishment that brought us peace was upon him, and by his wounds we are
healed. We all, like sheep, have gone astray, each of us has turned to his
own way; and the LORD has laid on him the iniquity of us all." [Isaiah
53:5-6]
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