github web-platform-tests/wpt merge_pr_46364

latest releases: merge_pr_49470, epochs/three_hourly/2024-12-03_06H, epochs/six_hourly/2024-12-03_06H...
7 months ago

Update textarea intrinsic height calculations

This change adds a new layout.forms.textarea-sizing-excludes-auto-scrollbar.enabled pref that controls the height calculations for textareas.

With the pref enabled (the default) textareas only include the scrollbar size in the height calculations when overflow-x is scroll, this matches Chromium and WebKit.

Also adds a corresponding WPT for this.

Differential Revision: https://phabricator.services.mozilla.com/D210796

bugzilla-url: https://bugzilla.mozilla.org/show_bug.cgi?id=1830576
gecko-commit: 12723265fe8c5a7e4fe00b353a93bfc72276439d
gecko-reviewers: dholbert

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