1 This test checks to ensure that the window object is cleared during a navigation.
3 If the test passes, you will see only PASS messages below.
5 PASS: element 0 in the window's prototype chain was cleared
7 PASS: element 1 in the window's prototype chain was cleared
9 PASS: element 2 in the window's prototype chain was cleared
11 PASS: element 3 in the window's prototype chain was cleared