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    <title>Network Monitor Test Page</title>
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    <p>HAR POST data test</p>
    <script type="text/javascript">
      /* exported executeTest, executeTest2, executeTest3 */
      "use strict";
      function post(address, data) {
        const xhr = new XMLHttpRequest();
        xhr.open("POST", address, true);
        xhr.setRequestHeader("Content-Type", "application/json");
        xhr.send(data);
      }
      function get(address) {
        const xhr = new XMLHttpRequest();
        xhr.open("GET", address);
        xhr.send();
      }
      function executeTest() {
        const url = "html_har_post-data-test-page.html";
        const data = "{'first': 'John', 'last': 'Doe'}";
        post(url, data);
      }
      function executeTest2(size) {
        const url = "html_har_post-data-test-page.html";
        const data = "x".repeat(size);
        post(url, data);
      }
      function executeTest3() {
        const url = "html_har_post-data-test-page.html";
        get(url);
      }
    </script>
  </body>
</html>