[Webkit-unassigned] [Bug 266825] WebGL is available in webworker but not available in sub webworker

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=266825

--- Comment #4 from Tom <77875894q at gmail.com> ---
(In reply to Karl Dubost from comment #2)
> It would be great if you could provide a reduce test case.

Hi Karl

The test code could be like this, just start a new webworker with "worker.js" in a HTML page,  it will output "is sub-worker support WebGL: false" on Safari 17



worker.js

const worker = new Worker("./subworker.js");

worker.addEventListener("message", (e) => {
    console.log("is sub-worker support WebGL: ", e.data);
})


subworker.js

const ofs = new OffscreenCanvas(1, 1);


self.postMessage(ofs.getContext('webgl') ? true : false);

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