[simple-requests-ch.tentative.htm]
  expected:
    if (os == "linux") and not fission and not debug: [OK, CRASH]
    if (os == "android") and fission: [OK, TIMEOUT]
  [No preflight GET and {"save-data":"on","device-memory":"2.0","dpr":"3.0","width":"1200","viewport-width":"1300","rtt":"1","downlink":"1.0","ect":"2g"}]
    expected: FAIL

  [No preflight HEAD and {"save-data":"on","device-memory":"2.0","dpr":"3.0","width":"1200","viewport-width":"1300","rtt":"1","downlink":"1.0","ect":"2g"}]
    expected: FAIL

  [No preflight POST and {"save-data":"on","device-memory":"2.0","dpr":"3.0","width":"1200","viewport-width":"1300","rtt":"1","downlink":"1.0","ect":"2g"}]
    expected: FAIL