[whatwg] Simplified <picture> element draft

Boris Zbarsky bzbarsky at MIT.EDU
Tue Jan 7 13:53:43 PST 2014

On 1/7/14 4:28 PM, Yoav Weiss wrote:
> Since this case is not the majority case, we could bail out of it by
> delaying the iframe's subresource loading that rely on viewport
> dimensions until the parent's layout is considered "done"

That seems fairly undesirable, actually, though limiting it only to the 
things that have media queries might be better...

> (e.g. all its
> <head> CSS was parsed and applied)

And all its HTML parsed (including whatever onload scripts it runs) and 
layout on that completed, right?

This seems like it serializes things a lot...

But also some of the same constraints apply to the toplevel viewport, 
not just subframes (e.g. its dimensions can change based on what the 
browser UI does, etc).  At some point you just accept that the 
dimensions you have are what you have, even if they might change in the 


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