This is a testharness.js-based test.
PASS Make sure that relList based feature detection is working for <link>
FAIL Make sure that relList based feature detection is working for <a> assert_true: tag = A, link type = opener must be supported expected true got false
FAIL Make sure that relList based feature detection is working for <area> assert_true: tag = AREA, link type = opener must be supported expected true got false
FAIL Make sure that relList based feature detection is working for <form> Cannot read property 'contains' of undefined
Harness: the test ran to completion.