!testData.base!!.startsWith("http:") &&
      testData.base != "about:blank"
    ) {
      System.err.println("Ignoring unsupported base ${testData.base}")
      return
    }

    try {
      testHttpUrl(testData)
      if (KNOWN_FAILURES.contains(testData.toString())) {
        System.err.println("Expected failure but was success: $testData")
      }
    } catch (e: Throwable) {