On 6/9/14, 5:16 PM, Tab Atkins Jr. wrote: > Firefox is guaranteed correct in cases 2 and 4. They're correct in > cases 1 and 3 if there's no UA styles setting the elements to > something else; there shouldn't be any such thing, since <textarea> is > replaced content and thus CSS doesn't have control over its scrolling > behavior. I was with you until the last clause. ;) Web compat requires, afaict, that some values of "overflow" in fact affect the scrolling behavior of iframe. The Gecko implementation effectively allows all specified and computed values as normal and then treats "visible" as "auto" at used value time. The WebKit/Blink implementation seems to treat a specified value of "visible" as a computed value of "auto" (or possibly the used style; it's hard to tell with getComputedStyle which one you're getting for which property in which implementation). I'm not quite sure what IE is actually doing here. -BorisReceived on Tuesday, 10 June 2014 01:43:17 UTC
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