208570 2020-03-04 03:08:00 -0800 frame/iframe scrolling attribute does to recognize value "noscroll" or "off" 2020-03-18 11:13:14 -0700 1 1 1 Unclassified WebKit DOM WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar, WebExposed P2 Normal --- 209178 1 fred.wang fred.wang cdumez commit-queue esprehn+autocc ews-watchlist fred.wang gyuyoung.kim masonf mjs rbuis simon.fraser webkit-bug-importer oldest_to_newest 1625471 0 fred.wang 2020-03-04 03:08:00 -0800 From https://html.spec.whatwg.org/multipage/rendering.html#the-page: > If a Document's browsing context is a child browsing context, the container of that browsing context is a frame or iframe element, that element has a scrolling attribute, and that attribute's value is an ASCII case-insensitive match for the string "off", "noscroll", or "no", then the user agent is expected to prevent any scrollbars from being shown for the viewport of the Document's browsing context, regardless of the 'overflow' property that applies to that viewport. Source/WebCore/html/HTMLFrameElementBase.cpp only handles "no": ScrollbarMode HTMLFrameElementBase::scrollingMode() const { return equalLettersIgnoringASCIICase(attributeWithoutSynchronization(scrollingAttr), "no") ? ScrollbarAlwaysOff : ScrollbarAuto; } Gecko recognizes the three values and Chromium added support for them after fixing https://bugs.chromium.org/p/chromium/issues/detail?id=1057454 WPT test was added in https://chromium-review.googlesource.com/c/chromium/src/+/2085396 1625962 1 fred.wang 2020-03-04 23:39:23 -0800 This should be trivial fix. I can take care of this. 1625998 2 392550 fred.wang 2020-03-05 02:19:04 -0800 Created attachment 392550 WIP Patch WPT tests haven't arrived yet into the WPT repos, so we need to wait before taking this... 1626136 3 masonf 2020-03-05 09:42:18 -0800 WPT tests are hung up here: https://github.com/web-platform-tests/wpt/pull/22072 1630861 4 simon.fraser 2020-03-17 13:26:20 -0700 Are "off", "noscroll", or "no" synonymous? 1630886 5 fred.wang 2020-03-17 14:18:03 -0700 (In reply to Simon Fraser (smfr) from comment #4) > Are "off", "noscroll", or "no" synonymous? In HTML5, yes (see comment 0). Maybe this was different in HTML4. 1631059 6 393825 fred.wang 2020-03-18 00:27:37 -0700 Created attachment 393825 Patch 1631208 7 393825 rbuis 2020-03-18 09:48:48 -0700 Comment on attachment 393825 Patch Approved also since Maciej indicated it as a reasonable change. 1631255 8 393825 commit-queue 2020-03-18 11:12:43 -0700 Comment on attachment 393825 Patch Clearing flags on attachment: 393825 Committed r258651: <https://trac.webkit.org/changeset/258651> 1631256 9 commit-queue 2020-03-18 11:12:45 -0700 All reviewed patches have been landed. Closing bug. 1631257 10 webkit-bug-importer 2020-03-18 11:13:14 -0700 <rdar://problem/60592188> 392550 2020-03-05 02:19:04 -0800 2020-03-18 00:27:37 -0700 WIP Patch 0001-Bug-208570-frame-iframe-scrolling-attribute-does-to-.patch text/plain 8422 fred.wang RnJvbSAzYWI5MzM2ODc0Njk2NDUzNTQ0OTM1ZTJkOTMxOGY3YjBhYjk4ODEyIE1vbiBTZXAgMTcg MDA6MDA6MDAgMjAwMQpGcm9tOiBGcmVkZXJpYyBXYW5nIDxmd2FuZ0BpZ2FsaWEuY29tPgpEYXRl OiBUaHUsIDUgTWFyIDIwMjAgMTE6MTU6NDEgKzAxMDAKU3ViamVjdDogW1BBVENIIHhzZXJ2ZXJd IEJ1ZyAyMDg1NzAgLSBmcmFtZS9pZnJhbWUgc2Nyb2xsaW5nIGF0dHJpYnV0ZSBkb2VzIHRvCiBy ZWNvZ25pemUgdmFsdWUgIm5vc2Nyb2xsIiBvciAib2ZmIgoKLS0tCiAuLi4vaWZyYW1lLXNjcm9s bGluZy1hdHRyaWJ1dGUtZXhwZWN0ZWQuaHRtbCAgfCAxNiArKysrKysrKysrCiAuLi5lLXNjcm9s bGluZy1hdHRyaWJ1dGUtdmFsdWVzLWV4cGVjdGVkLmh0bWwgfCAyOSArKysrKysrKysrKysrKysr KysrCiAuLi4vaWZyYW1lLXNjcm9sbGluZy1hdHRyaWJ1dGUtdmFsdWVzLmh0bWwgICAgfCAyOSAr KysrKysrKysrKysrKysrKysrCiAuLi4vdGhlLXBhZ2UvaWZyYW1lLXNjcm9sbGluZy1hdHRyaWJ1 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