[Webkit-unassigned] [Bug 255568] New: Styles for `:dir` incorrectly apply

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=255568

            Bug ID: 255568
           Summary: Styles for `:dir` incorrectly apply
           Product: WebKit
           Version: Safari 16
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: sorvell at google.com

When direction is dynamically changed by setting the `dir` attribute to `rtl`, styles matching `:dir(rtl)` are applied as expected; however, if the `dir` attribute is removed, styles matching `:dir(rtl)` unexpectedly still apply.

See this reproduction: https://lit.dev/playground/#gist=b7c7e390a923d0a54b5c3211bd69a668

Expected: 
1. check the `rtl` checkbox to set document to rtl mode
2. styles matching `:dir(rtl)` apply
3. uncheck the `rtl` checkbox to set document back to default (ltr) direction
4. styles matching `:dir(rtl)` do *not* apply

Actual: 
1. check the `rtl` checkbox to set document to rtl mode
2. styles matching `:dir(rtl)` apply
3. uncheck the `rtl` checkbox to set document back to default (ltr) direction
4. styles matching `:dir(rtl)` *unexpectedly do* apply

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.webkit.org/pipermail/webkit-unassigned/attachments/20230418/dca58213/attachment-0001.htm>