[navigation-controls.tentative.html]
expected:
if (os == "android") and fission: [OK, TIMEOUT]
[Check that none evaluates to false in the boolean context]
expected: FAIL
[Should be known: '(navigation-controls)']
expected: FAIL
[Should be known: '(navigation-controls: none)']
expected: FAIL
[Should be known: '(navigation-controls: back-button)']
expected: FAIL