diff --git a/README.md b/README.md
index 1908334..aa1888f 100644
--- a/README.md
+++ b/README.md
@@ -26,13 +26,23 @@ naf-janus-adapter should support anything that supports recent WebRTC standards
    <a-scene networked-scene="
         room: 1;
         adapter: janus;
-        serverURL: wss://preprod-janus.example.com/janus;
       ">
   </a-scene>
 </body>
 </html>
 ```
 
+Default serverURL is `/janus` which is converted to `'wss://' + location.host + '/janus'`.
+You can also specify a full url if the server is not the same:
+
+```html
+   <a-scene networked-scene="
+        room: 1;
+        adapter: janus;
+        serverURL: wss://janus.example.com/janus;
+      ">
+```
+
 Compared to other adapters like easyrtc, the janus adapter has a specific API,
 you need to call `NAF.connection.adapter.setClientId` and
 `NAF.connection.adapter.setLocalMediaStream`, see the [Audio example](examples/index.html)
@@ -88,9 +98,6 @@ scene.addEventListener('adapter-ready', ({ detail: adapter }) => {
 - Build: `npm run build`
 - Release: `npm run release`
 
-For development on the same LAN with `npm start` and if you run the janus docker image locally, you can use the config
-`serverURL: wss://192.168.1.15:8080/janus;` (change the ip by yours of course).
-
 ## Janus SFU deployment
 
 - [How to deploy janus with the janus sfu plugin on Ubuntu 20.04](docs/janus-deployment.md)
diff --git a/examples/audio-with-camera.html b/examples/audio-with-camera.html
index 681b9cc..e5d7a66 100644
--- a/examples/audio-with-camera.html
+++ b/examples/audio-with-camera.html
@@ -62,7 +62,6 @@
         debug: false;
         adapter: janus;
         connectOnLoad: true;
-        serverURL: wss://preprod-janus.example.com/janus;
       "
       renderer="physicallyCorrectLights: true;"
     >
diff --git a/examples/index.html b/examples/index.html
index 50cfb5f..f413fbf 100644
--- a/examples/index.html
+++ b/examples/index.html
@@ -59,7 +59,7 @@
       For development, networked-scene is configured with:
 
         adapter: janus
-        serverURL: wss://192.168.1.15:8080/janus;
+        serverURL: /janus;
 
       Run janus container locally:
 
@@ -67,9 +67,9 @@
         docker compose up
 
         cd naf-janus-adapter
-        npm start # to have https proxy on 8080 to janus http://127.0.0.1:8188/janus
+        npm start # to serve the examples and proxy /janus to http://127.0.0.1:8188/janus
 
-      go to https://192.168.1.15:8080
+      go to https://localhost:8080
     -->
     <a-scene
       audio
@@ -78,7 +78,6 @@
         debug: false;
         adapter: janus;
         connectOnLoad: true;
-        serverURL: wss://192.168.1.15:8080/janus;
       "
       renderer="physicallyCorrectLights: true;"
     >
diff --git a/src/index.js b/src/index.js
index 97d5b65..c4fddfc 100644
--- a/src/index.js
+++ b/src/index.js
@@ -193,6 +193,16 @@ class JanusAdapter {
   }
 
   connect() {
+    if (this.serverUrl === '/') {
+      this.serverUrl = '/janus';
+    }
+    if (this.serverUrl === '/janus') {
+      if (location.protocol === 'https:') {
+        this.serverUrl = 'wss://' + location.host + '/janus';
+      } else {
+        this.serverUrl = 'ws://' + location.host + '/janus';
+      }
+    }
     debug(`connecting to ${this.serverUrl}`);
 
     const websocketConnection = new Promise((resolve, reject) => {