This test verifies that a sandboxed iframe CAN navigate both itself and a child in the frame tree. It also verifies that the sandbox attribute remains intact after a frame has been navigated, and that sandbox attributes are propagated through the frame hierarchy. On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". PASS (self.sandboxedFrame.frameWithPlugin.document.getElementById('plugin').destroyStream) == undefined is true PASS (self.frameWithPlugin.document.getElementById('plugin').destroyStream) != undefined is true PASS document.getElementById('sandboxedFrameId').sandbox is 'allow-scripts allow-same-origin' PASS successfullyParsed is true TEST COMPLETE