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js/src/jit-test/tests/proxy/testDirectProxyPreventExtensions3.js@ac0c01689b40

js/src/jit-test/tests/proxy/testDirectProxyPreventExtensions3.js

Thu, 15 Jan 2015 15:59:08 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Thu, 15 Jan 2015 15:59:08 +0100

branch

TOR_BUG_9701

changeset 10

ac0c01689b40

permissions

-rw-r--r--

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.

 load(libdir + "asserts.js");

 // Throw a TypeError if the trap reports an extensible object as non-extensible

 assertThrowsInstanceOf(function () {

     Object.preventExtensions(new Proxy({}, {

         preventExtensions: function () {

             return true;

         }

     }));

 }, TypeError);