[Bug 25923] isTypeSupported should be asynchronous

https://www.w3.org/Bugs/Public/show_bug.cgi?id=25923

--- Comment #37 from David Dorwin <ddorwin@google.com> ---
(In reply to Anne from comment #36)
> We could make it so that the UA has to pick the first it supports. But I
> don't really see the problem with multiple calls to isTypeSupported(). Also,
> I suspect the switch in UAs to be on/off for the feature in general, not a
> per key basis. That seems way complicated.

I don't expect this to be a major issue in practice, but it would be nice if we
could specify something that provides more flexibility without being overly
complex.

I assume you mean "a per key *system* basis."
CDM implementations can vary greatly, so it is possible that two CDMs will have
very different security and privacy properties. It's also possible that one is
installed while another must be downloaded. In such scenarios, the UA might
actually want to provide a different UX for two key systems.

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Received on Wednesday, 24 September 2014 20:40:14 UTC