setrequestheader-allow-empty-value.htm

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This WPT test may be referenced by the following Test IDs:
- /xhr/setrequestheader-allow-empty-value.htm - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<html>

  <head>

    <title>XMLHttpRequest: setRequestHeader() - empty header</title>

    <script src="/resources/testharness.js"></script>

    <script src="/resources/testharnessreport.js"></script>

    <link rel="help" href="https://xhr.spec.whatwg.org/#the-setrequestheader()-method">

  </head>

  <body>

    <div id="log"></div>

    <script>

      function request(value) {

        test(function() {

          var client = new XMLHttpRequest()

          client.open("POST", "resources/inspect-headers.py?filter_name=X-Empty", false)

          client.setRequestHeader('X-Empty', value)

          client.send(null)

          assert_equals(client.responseText, 'X-Empty: ' + value + '\n' )

        }, document.title + " (" + value + ")")

      request("")

      request(null)

      request(undefined)

    </script>

  </body>

</html>