On Fri, Mar 22, 2013 at 9:26 AM, Boris Zbarsky <bzbarsky@mit.edu> wrote: > On 3/22/13 12:15 PM, Tab Atkins Jr. wrote: >> Or one could just say that anything below a viewport >> element is automatically in the slow path > > Even this requires consumers who currently only say "hey, make styles up to > date" to instead give the list of elements they need styles up to date for. The "consumers" here are internal API, right? If so, yeah, you're right. That's not great. >> I assume this is because viewport MQs in the iframe depend on styling >> in the outer document? > > Indeed. And layout in the subframe depends on layout in the outer document > too. Hm, ok. Well then, we should investigate the <iframe> behavior, and see if it's okay to duplicate, perhaps with my suggestion of an opt-in way to get the more expensive "true" value out of getComputedStyle. If we did this, I wonder what the effect would be on nested viewport elements? ~TJReceived on Friday, 22 March 2013 16:36:57 UTC
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