[attr-security.html]
  expected: ERROR
  [CSS Values and Units Test: attr() security limitations]
    expected: FAIL

  [CSS Values and Units Test: attr() security limitations 3]
    expected: FAIL

  [CSS Values and Units Test: attr() security limitations 5]
    expected: FAIL

  [CSS Values and Units Test: attr() security limitations 6]
    expected: FAIL

  [CSS Values and Units Test: attr() security limitations 8]
    expected: FAIL

  [CSS Values and Units Test: attr() security limitations 9]
    expected: FAIL

  [CSS Values and Units Test: attr() security limitations 15]
    expected: FAIL

  [CSS Values and Units Test: attr() security limitations 16]
    expected: FAIL

  [CSS Values and Units Test: attr() security limitations 18]
    expected: FAIL

  [CSS Values and Units Test: attr() security limitations 20]
    expected: FAIL

  [CSS Values and Units Test: attr() security limitations 22]
    expected: FAIL

  [CSS Values and Units Test: attr() security limitations 12]
    expected: FAIL

  [CSS Values and Units Test: attr() security limitations 14]
    expected: FAIL

  ['--x: image-set(attr(data-foo))' with data-foo="https://does-not-exist.test/404.png"]
    expected: FAIL

  ['--x: src(attr(data-foo))' with data-foo="https://does-not-exist.test/404.png"]
    expected: FAIL

  ['background-image: src("https://does-not-exist.test/404.png")' with data-foo="https://does-not-exist.test/404.png"]
    expected: FAIL

  ['--x: src(string("https://does-not-exist.test" attr(data-foo)))' with data-foo="/404.png"]
    expected: FAIL

  ['background-image: src(string("https://does-not-exist.test/""404.png"))' with data-foo="/404.png"]
    expected: FAIL

  ['--x: attr(data-foo type(<url>))' with data-foo="url(https://does-not-exist.test/404.png)"]
    expected: FAIL

  ['--x: image(attr(data-foo))' with data-foo="https://does-not-exist.test/404.png"]
    expected: FAIL

  ['background-image: image("https://does-not-exist.test/404.png")' with data-foo="https://does-not-exist.test/404.png"]
    expected: FAIL

  ['background-image: url(https://does-not-exist.test/404.png), attr(data-foo type(<image>))' with data-foo="linear-gradient(#000000, #ffffff)"]
    expected: FAIL

  ['--x: image-set(var(--y, attr(data-foo)))' with data-foo="https://does-not-exist.test/404.png"]
    expected: FAIL

  ['--x: image-set(var(--some-string))' with data-foo="https://does-not-exist.test/404.png"]
    expected: FAIL

  ['--x: image-set(var(--some-string-list))' with data-foo="https://does-not-exist.test/404.png"]
    expected: FAIL