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There's no Object.prototype.__proto__ #26664

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AFatNiBBa opened this issue Oct 31, 2024 · 2 comments
Closed

There's no Object.prototype.__proto__ #26664

AFatNiBBa opened this issue Oct 31, 2024 · 2 comments
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question a question about the use of Deno

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@AFatNiBBa
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Version: Deno 2.0.4

I'm working with legacy packages that make use of Object.prototype.__proto__, which is not defined in deno.
This polyfill is needed

Object.defineProperty(Object.prototype, "__proto__", {
    enumerable: false,
    configurable: true,
    get() { return Object.getPrototypeOf(this); },
    set(v) { Object.setPrototypeOf(this, v); }
});
@bartlomieju
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It's disabled by default in Deno due to security reasons. You can enable it with --unstable-unsafe-proto flag.

@bartlomieju bartlomieju added the question a question about the use of Deno label Oct 31, 2024
@dsherret
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You can also specify:

{
  "unstable": ["unsafe-proto"]
}

in a deno.json file.

Read more:

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@dsherret @bartlomieju @AFatNiBBa