>> mplayer-plug (which has a new name iirc).
>> Might be you need to implement NPNVWindowNPObject
>> (NPNVPluginElementNPObject returns
>> a js plugin object, but isn't called ifair).
>
> Looks like a quick hack handling .location makes it work, indeed.
> I think I'll make KHTML pass it in as __KHTML_PAGE_URL and special-case
> it like that, as a candidate for 4.4-backport, and give the proper
> interface some though.

And it is done, and seems to work. YouTube does seem to call NPN_evaluate,
though.