Bug 250659
| Summary: | ImageData object must initialize to source when the source is provided | ||
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| Product: | WebKit | Reporter: | Karl Dubost <karlcow> |
| Component: | Canvas | Assignee: | Nobody <webkit-unassigned> |
| Status: | NEW | ||
| Severity: | Normal | CC: | dino, webkit-bug-importer |
| Priority: | P2 | Keywords: | BrowserCompat, InRadar, WPTImpact |
| Version: | Safari Technology Preview | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| URL: | https://wpt.fyi/results/html/canvas/element/pixel-manipulation/2d.imageData.object.ctor.array.html?label=experimental&label=master&aligned | ||
Karl Dubost
Test to reproduce the issue
var array = new Uint8ClampedArray(8);
var imgdata = new window.ImageData(array, 1, 2);
imgdata.data === array;
This returns false in Safari
and true in Firefox and Chrome.
The spec says:
> If source was given, then initialize the data attribute of imageData to source.
— https://html.spec.whatwg.org/multipage/canvas.html#initialize-an-imagedata-object
This makes Safari fail
https://github.com/web-platform-tests/wpt/blob/7a0b0c285b91a0b1fa08da58c964b82e5cf40733/html/canvas/element/pixel-manipulation/2d.imageData.object.ctor.array.html#L28
https://wpt.fyi/results/html/canvas/element/pixel-manipulation/2d.imageData.object.ctor.array.html?label=experimental&label=master&aligned
| Attachments | ||
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| Add attachment proposed patch, testcase, etc. |
Radar WebKit Bug Importer
<rdar://problem/104284100>