[Webkit-unassigned] [Bug 180528] New: Update HSL/HSLA parsing to match CSS Color 4

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=180528

            Bug ID: 180528
           Summary: Update HSL/HSLA parsing to match CSS Color 4
           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: christopherncarmel at hotmail.com

In CSS Color 4, the HSL and HSLA functions were synonymized, the hue was allowed to be an angle value, the alpha value was allowed to be a percent, and a new syntax was described with whitespace separating the parameters and a backslash separating the optional alpha value. Safari has not implemented any of these changes. This should be tested in the future by https://wpt.fyi/css/css-color (see https://github.com/w3c/web-platform-tests/pull/8598). The spec is at https://drafts.csswg.org/css-color-4/#the-hsl-notation.

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