[link-parameters-invalid.html]
  [e.style['link-parameters'\] = "param(--a)" should not set the property value]
    expected: FAIL

  [e.style['link-parameters'\] = "param(--a), param(--b)" should not set the property value]
    expected: FAIL

  [e.style['link-parameters'\] = "param(--a" should not set the property value]
    expected: FAIL

  [e.style['link-parameters'\] = "param(--)" should not set the property value]
    expected: FAIL