tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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testDirectProxyPreventExtensions4.js (299B)

      1 load(libdir + "asserts.js");
      2 
      3 // Throw a TypeError if the object refuses to be made non-extensible
      4 var handler = { preventExtensions: () => false };
      5 for (let p of [new Proxy({}, handler), Proxy.revocable({}, handler).proxy])
      6    assertThrowsInstanceOf(() => Object.preventExtensions(p), TypeError);