This is a testharness.js-based test.
[FAIL] e.style['background-clip'] = "border-area" should set the property value
assert_not_equals: property should be set got disallowed value ""
[FAIL] e.style['background-clip'] = "border-box, padding-box, content-box, border-area" should set the property value
assert_not_equals: property should be set got disallowed value ""
Harness: the test ran to completion.