-------- Frame: 'child' -------- This prevents a cross-origin information leak sometimes know as framesniffing. On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". PASS document.documentElement.scrollTop == 0 is true PASS document.documentElement.scrollLeft == 0 is true PASS successfullyParsed is true TEST COMPLETE -------- Frame: 'grandchild' -------- This is an anchor point named "anchor1".