It looks like this is a web page, not a feed. I looked for a feed associated with this page, but couldn't find one. Please enter the address of your feed to validate.

Source: http://www.mozbrowser.nl/forum/rss.php

  1. <!DOCTYPE html>
  2. <html lang="en">
  3.  <head>
  4.    <meta
  5.      http-equiv="Content-Security-Policy"
  6.      content="default-src 'self'; img-src 'self' data:; media-src 'self' data:; object-src 'none'; style-src 'self' 'sha256-o4vzfmmUENEg4chMjjRP9EuW9ucGnGIGVdbl8d0SHQQ='; script-src 'self' 'sha256-KXex2o39zxtnzVWK4H5rW07g2+BlwSPtn+aguzsWkNg=';"
  7.    />
  8.    <link
  9.      href="/_fs-ch-1T1wmsGaOgGaSxcX/assets/inter-var.woff2"
  10.      rel="preload"
  11.      as="font"
  12.      type="font/woff2"
  13.      crossorigin
  14.    />
  15.    <link href="/_fs-ch-1T1wmsGaOgGaSxcX/assets/styles.css" rel="stylesheet" />
  16.    <meta name="viewport" content="width=device-width, initial-scale=1" />
  17.    <title>Client Challenge</title>
  18.    <style>
  19.      #loading-error {
  20.        font-size: 16px;
  21.        font-family: 'Inter', sans-serif;
  22.        margin-top: 10px;
  23.        margin-left: 10px;
  24.        display: none;
  25.      }
  26.    </style>
  27.  </head>
  28.  <body>
  29.    <noscript>
  30.      <div class="noscript-container">
  31.        <div class="noscript-content">
  32.          <img
  33.            src="/_fs-ch-1T1wmsGaOgGaSxcX/assets/errorIcon.svg"
  34.            alt=""
  35.            role="presentation"
  36.            class="error-icon"
  37.          />
  38.          <span class="noscript-span"
  39.            >JavaScript is disabled in your browser.</span
  40.          >
  41.          <p>Please enable JavaScript to proceed.</p>
  42.        </div>
  43.      </div>
  44.    </noscript>
  45.    <div id="loading-error" role="alert" aria-live="polite">
  46.      A required part of this site couldn’t load. This may be due to a browser
  47.      extension, network issues, or browser settings. Please check your
  48.      connection, disable any ad blockers, or try using a different browser.
  49.    </div>
  50.    <script>
  51.      function loadScript(src) {
  52.        return new Promise((resolve, reject) => {
  53.          const script = document.createElement('script');
  54.          script.onload = resolve;
  55.          script.onerror = (event) => {
  56.            console.error('Script load error event:', event);
  57.            document.getElementById('loading-error').style.display = 'block';
  58.            loadingError.setAttribute('aria-hidden', 'false');
  59.            reject(
  60.              new Error(
  61.                `Failed to load script: ${src}, Please contact the service administrator.`
  62.              )
  63.            );
  64.          };
  65.          script.src = src;
  66.          document.body.appendChild(script);
  67.        });
  68.      }
  69.  
  70.      loadScript('/_fs-ch-1T1wmsGaOgGaSxcX/errors.js')
  71.        .then(() => {
  72.          const script = document.createElement('script');
  73.          script.src = '/_fs-ch-1T1wmsGaOgGaSxcX/script.js?reload=true';
  74.          script.onerror = (event) => {
  75.            console.error('Script load error event:', event);
  76.            const errorMsg = new Error(
  77.              `Failed to load script: ${script.src}. Please contact the service administrator.`
  78.            );
  79.            console.error(errorMsg);
  80.            handleScriptError();
  81.          };
  82.          document.body.appendChild(script);
  83.        })
  84.        .catch((error) => {
  85.          console.error(error);
  86.        });
  87.    </script>
  88.  </body>
  89. </html>
  90.  
Copyright © 2002-9 Sam Ruby, Mark Pilgrim, Joseph Walton, and Phil Ringnalda