web/pwn-the-author/dist/fetch.html

<!doctype html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Dynamic Page Loader</title>
  </head>
  <body>
    <div id="content"></div>

    <script>
      let webHost = "";

      window.addEventListener("message", async function (event) {
        const { method, argument } = event.data;

        if (method === "setHost") {
          webHost = argument;
          console.log(`webHost set to: ${webHost}`);
        }

        if (method === "loadPage") {
          const url = new URL("/posts/" + argument, webHost);
          console.log(`Fetching content from: ${url}`);

          try {
            const response = await fetch(url);
            const text = await response.text();
            document.getElementById("content").innerHTML = text;
          } catch (error) {
            document.getElementById("content").innerHTML =
              "Failed to load content.";
            console.error("Error fetching the page:", error);
          }
        }
      });
    </script>
  </body>
</html>