[Webkit-unassigned] [Bug 190454] New: Add an SPI for WebView clients to control the WebKit image format whitelist

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=190454

            Bug ID: 190454
           Summary: Add an SPI for WebView clients to control the WebKit
                    image format whitelist
           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

Currently WebKit supports a fixed set of image formats. WebKit cancels loading the image, if its formats is not in the whitelist, and marks it as a broken image. The rationale for having a fixed small list is WebKit wants to support only standardized and well tested image formats.

But some WebView clients had requested to render still-none-standardized image formats, like HEIF for example, if the system supports decoding and rendering them. This SPI will allow reading the image format whitelist and setting it to a new value.

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