[Webkit-unassigned] [Bug 252142] New: reduce custom property storage for sites with large numbers of custom properties on the root

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=252142

            Bug ID: 252142
           Summary: reduce custom property storage for sites with large
                    numbers of custom properties on the root
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: heycam at apple.com

Some sites have a large number of custom properties set on the root element, inheriting into the entire document.  When different custom properties or values are set on descendant elements, we clone all of the inherited properties.  We can adjust the way we store and inherit custom properties to handle this pattern with less memory use.

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