| Test that the window.navigator.xr wrapper preserves custom properties. | |
| On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". | |
| PASS window.navigator.xr.customProperty is undefined. | |
| window.navigator.xr.customProperty = 1 | |
| PASS window.navigator.xr.customProperty is 1 | |
| PASS window.navigator.xr.customProperty is 1 | |
| PASS window.navigator.xr.customProperty is 1 | |
| PASS window.navigator.xr.customProperty is 1 | |
| PASS successfullyParsed is true | |
| TEST COMPLETE | |