diff --git a/src/node/hooks/express/specialpages.js b/src/node/hooks/express/specialpages.js
index bf91b3bd9..7778773ed 100644
--- a/src/node/hooks/express/specialpages.js
+++ b/src/node/hooks/express/specialpages.js
@@ -110,6 +110,11 @@ exports.expressCreateServer = async (hookName, args) => {
       path: path.join(settings.root, 'var/js'),
       filename: '[name]-[contenthash].js',
     },
+    resolve: {
+      alias: {
+        'ep_etherpad-lite': path.join(settings.root, 'src'),
+      },
+    },
   });
   const stats = await util.promisify(compiler.run.bind(compiler))();
   console.log(`webpack stats:\n${stats}`);
diff --git a/src/templates/padbootstrap.js b/src/templates/padbootstrap.js
index e76f111a3..40b707bcb 100644
--- a/src/templates/padbootstrap.js
+++ b/src/templates/padbootstrap.js
@@ -6,6 +6,13 @@
     // sends the CLIENT_VARS message.
     randomVersionString: <%-JSON.stringify(settings.randomVersionString)%>,
   };
+
+  // Allow other frames to access this frame's modules.
+  window.require = __webpack_require__;
+  window.require.resolve = __webpack_require__.resolve;
+  window.require.cache = __webpack_module_cache__;
+  window.require.resolveTmp = require.resolve('ep_etherpad-lite/static/js/pad_cookie');
+
   const basePath = new URL('..', window.location.href).pathname;
   window.$ = window.jQuery = require('../../src/static/js/rjquery').jQuery;
   window.browser = require('../../src/static/js/vendors/browser');