Thu, 15 Jan 2015 15:59:08 +0100
Implement a real Private Browsing Mode condition by changing the API/ABI;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
1 load(libdir + "asserts.js");
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 assertThrowsInstanceOf(function () {
10 Object.defineProperty(new Proxy(target, {
11 defineProperty: function (target, name, desc) {
12 return true;
13 }
14 }), 'foo', {
15 configurable: true
16 });
17 }, TypeError);