diff --git a/custom/cryptpad/conf.d/cryptpad.conf b/custom/cryptpad/conf.d/cryptpad.conf
index bf8ed28..8aa3515 100644
--- a/custom/cryptpad/conf.d/cryptpad.conf
+++ b/custom/cryptpad/conf.d/cryptpad.conf
@@ -11,6 +11,9 @@ server {
     set_real_ip_from  10.0.0.0/8;
     real_ip_header    X-Forwarded-For;
 
+    proxy_set_header Upgrade $http_upgrade;
+    proxy_set_header Connection "Upgrade";
+
     # CryptPad serves static assets over these two domains.
     # `main_domain` is what users will enter in their address bar.
     # Privileged computation such as key management is handled in this scope
diff --git a/custom/cryptpad/config.js b/custom/cryptpad/config.js
index 46071fc..4d86ab3 100644
--- a/custom/cryptpad/config.js
+++ b/custom/cryptpad/config.js
@@ -283,6 +283,4 @@ module.exports = {
      *
      */
     installMethod: 'unspecified',
-};
-
-var _domain = 'http://127.0.0.1:3000/';
\ No newline at end of file
+};
\ No newline at end of file