[move-back-iframe-fetch-error-external-module.html]
  [<script> error: Move fetch-error external module script to iframe move-back]
    expected:
      if not fission and not swgl and (os == "android") and not debug: [PASS, FAIL]
      if not fission and not swgl and (os == "android") and debug: [PASS, FAIL]
      if not fission and not swgl and (os == "linux"): [PASS, FAIL]
      if not fission and swgl and (os == "linux"): [PASS, FAIL]
      if not fission and swgl and (os == "android"): [PASS, FAIL]