tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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testDirectProxyDefineProperty3.js (471B)

      1 load(libdir + "asserts.js");
      2 
      3 /*
      4 * Throw a TypeError if the trap defines a new property on a non-extensible
      5 * object
      6 */
      7 var target = {};
      8 Object.preventExtensions(target);
      9 
     10 var handler = { defineProperty: function (target, name, desc) { return true; } };
     11 
     12 for (let p of [new Proxy(target, handler), Proxy.revocable(target, handler).proxy]) {
     13    assertThrowsInstanceOf(function () {
     14        Object.defineProperty(p, 'foo', { configurable: true });
     15    }, TypeError);
     16 }