[Webkit-unassigned] [Bug 261552] New: getComputedStyle(elt).backgroundBlendMode returns only the first property of a list (background-blend-mode)

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Thu Sep 14 02:28:52 PDT 2023


https://bugs.webkit.org/show_bug.cgi?id=261552

            Bug ID: 261552
           Summary: getComputedStyle(elt).backgroundBlendMode returns only
                    the first property of a list (background-blend-mode)
           Product: WebKit
           Version: Safari 17
          Hardware: Unspecified
               URL: http://wpt.live/css/compositing/parsing/background-ble
                    nd-mode-computed.html
                OS: Unspecified
            Status: NEW
          Keywords: BrowserCompat, WPTImpact
          Severity: Normal
          Priority: P2
         Component: CSS
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: karlcow at apple.com

see http://wpt.live/css/compositing/parsing/background-blend-mode-computed.html

when "normal, luminosity" is specified it returns only "normal"
while the "normal, luminosity" values are considered supported.

Firefox passes the test.
http://wpt.fyi/css/compositing/parsing/background-blend-mode-computed.html

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