Quellcode-Bibliothek file_browser_refresh_content.html   Sprache: HTML

<html>
  <body>
    <img src="file_browser_refresh_image.sjs">
    <iframe src="file_browser_refresh_iframe.sjs"></iframe>
    <div id="result"></div>

    <canvas id="canvas" width="100" height="100"> </canvas>
    <script>
      const image = document.querySelector("img");
      const iframe = document.querySelector("iframe");
      const result = document.getElementById("result");

      iframe.addEventListener("load", function() {
        result.setAttribute(
          "iframeContent",
          iframe.contentDocument.body.textContent
        );
      });

      // Ensure images are loaded
      image.addEventListener("load", function() {
        var canvas = document.getElementById('canvas');
        var ctx = canvas.getContext('2d');
        ctx.drawImage(image, 0, 0);

        result.setAttribute("imageDataURL", canvas.toDataURL());
      });

      // Ensure expired resources are still loaded
      fetch('./file_browser_refresh_expired_resource.sjs').then((response) => {
        let cacheControl = response.headers.get('Cache-Control');
        result.setAttribute("expiredResourceCacheControl", cacheControl);
      });

      // Ensure non cacheable resources are still loaded
      fetch('./file_browser_refresh_non_cacheable.sjs').then(() => {
        result.setAttribute("nonCacheableResourceCompleted", true);
      });
    </script>
  </body>
</html>