core: Add noscript.

authentik/core/templates/base/skeleton.html

@@ -28,5 +28,23 @@
         {% endblock %}
         {% block scripts %}
         {% endblock %}
+
+        <noscript>
+          <style>
+            body {
+              font-family: var(--ak-font-family-base), sans-serif;
+            }
+          </style>
+
+          <h1>
+            JavaScript is required to use
+            {% trans title|default:brand.branding_title %}
+          </h1>
+
+          <p>
+            Please enable JavaScript in your browser settings and reload the page.
+            If you are using a browser extension that blocks JavaScript, please disable it for this site.
+          </p>
+        </noscript>
     </body>
 </html>