[Webkit-unassigned] [Bug 201243] New: HTMLImageElement::decode() should return a resolved promise for decoding non bitmap images

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=201243

            Bug ID: 201243
           Summary: HTMLImageElement::decode() should return a resolved
                    promise for decoding non bitmap images
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Images
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: sabouhallawa at apple.com

Created attachment 377496

  --> https://bugs.webkit.org/attachment.cgi?id=377496&action=review

test case

Open the attached test case. In this test case, decode() is called for an SVG data url image.

Result: an alert messages says 'decode() promise was rejected'.
Expected: an alert messages says 'decode() promise was resolved'.

The specs: https://html.spec.whatwg.org/multipage/embedded-content.html#dom-img-decode says "If decoding does not need to be performed for this image (for example because it is a vector graphic), resolve promise with undefined."

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