| Tests whether focus can navigate between the two buttons by pressing tab twice. | |
| On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". | |
| PASS document.activeElement is iframe | |
| PASS iframeDocument.activeElement is input | |
| PASS document.activeElement is button2 | |
| PASS document.activeElement is iframe | |
| PASS iframeDocument.activeElement is input | |
| PASS document.activeElement is button1 | |
| PASS successfullyParsed is true | |
| TEST COMPLETE | |