[before-prepare-iframe-parse-error-external-module.html]
  [<script> error: Move parse-error external module script to iframe before-prepare]
    disabled:
      if tsan: https://bugzilla.mozilla.org/show_bug.cgi?id=1722918
    expected:
      if swgl and (os == "win"): [FAIL, PASS]
      [PASS, FAIL]