[Webkit-unassigned] [Bug 264487] svelte.dev tutorial page frequently shows "Yikes! We couldn't start the app"

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=264487

--- Comment #4 from Karl Dubost <karlcow at apple.com> ---
There is a "NULL/" CANNOT BE PARSED AS A URL.

>　Yikes!
> We couldn't start the app. Please ensure third party cookies are enabled for this site.


Just before failing there is a message in the console which is not happening when this is working.

Unhandled Promise Rejection: RangeError: Out of memory
in https://w-corp.staticblitz.com/webcontainer.5a198b5c.js
It points to obfuscated code…


```
await this['_ready'];
let _0x108c38 = async (_0x4f6726, _0x14bd92, _0xb69944, _0x51215e) => {
        let _0x116f1d = await _0x2a886c(_0x4f6726, _0x14bd92, _0xb69944, _0x51215e);
        return _0x116f1d instanceof ArrayBuffer ? _0x406aed(_0x116f1d, [_0x116f1d]) : _0x116f1d;
};
return await this['_fetcherComlink']['registry']['addLazyFileHandler'](_0x1d3fc0, _0x155028(_0x108c38)) ?? (() => {});
}
```

It should be possible to de-obfuscate but let's see first how much we can do without it.

The resource https://w-corp.staticblitz.com/fetch.worker.5a198b5c.js was preloaded using link preload but not used within a few seconds from the window's load event. Please make sure it wasn't preloaded for nothing.

I got into a state in Firefox Nightly, without the error message but an incomplete state too. 
And I got the same limbo state in Chrome Canary.

So I'm not certain that this is only Safari.
but maybe it's happening more often in Safari?

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