This is a testharness.js-based test.
Harness Error. harness_status.status = 1 , harness_status.message = Uncaught Error: assert_equals: expected (string) "auto" but got (undefined) undefined
[FAIL] Property input-security value 'initial'
  assert_true: input-security doesn't seem to be supported in the computed style expected true got false
[FAIL] Property input-security value 'inherit'
  assert_true: input-security doesn't seem to be supported in the computed style expected true got false
[FAIL] Property input-security value 'auto'
  assert_true: input-security doesn't seem to be supported in the computed style expected true got false
[FAIL] Property input-security value 'none'
  assert_true: input-security doesn't seem to be supported in the computed style expected true got false
Harness: the test ran to completion.