[legacy-edit-command.html?command=contentReadOnly&param=false]
  [execCommand("contentReadOnly", false, "false")]
    expected:
      if release_or_beta: FAIL

  [queryCommandEnabled("contentReadOnly")]
    expected:
      if release_or_beta: FAIL

  [queryCommandSupported("contentReadOnly")]
    expected:
      if release_or_beta: FAIL

[legacy-edit-command.html?command=contentReadOnly&param=true]
  [execCommand("contentReadOnly", false, "true")]
    expected:
      if release_or_beta: FAIL

  [queryCommandEnabled("contentReadOnly")]
    expected:
      if release_or_beta: FAIL

  [queryCommandSupported("contentReadOnly")]
    expected:
      if release_or_beta: FAIL
