This is a testharness.js-based test.
[FAIL] <a>: Setting <mailto:me@example.net>.protocol = 'http' Cannot-be-a-base URL doesn’t have a host, but URL in a special scheme must.
  assert_equals: expected "mailto:me@example.net" but got "http://me@example.net/"
[FAIL] <area>: Setting <mailto:me@example.net>.protocol = 'http' Cannot-be-a-base URL doesn’t have a host, but URL in a special scheme must.
  assert_equals: expected "mailto:me@example.net" but got "http://me@example.net/"
Harness: the test ran to completion.