diff --git a/tools/run-dev.py b/tools/run-dev.py
index 1e942f8abe..e8f4b38a9c 100755
--- a/tools/run-dev.py
+++ b/tools/run-dev.py
@@ -288,6 +288,8 @@ class CombineHandler(BaseWebsocketHandler):
     @web.asynchronous
     def prepare(self):
         # type: () -> None
+        if 'X-REAL-IP' not in self.request.headers:
+            self.request.headers['X-REAL-IP'] = self.request.remote_ip
         if self.request.headers.get("Upgrade", "").lower() == 'websocket':
             return super(CombineHandler, self).prepare()
         url = transform_url(
diff --git a/tools/webpack.config.js b/tools/webpack.config.js
index fa2387a5ba..eaee84380a 100644
--- a/tools/webpack.config.js
+++ b/tools/webpack.config.js
@@ -1,11 +1,11 @@
 module.exports = {
     entry: [
-        'webpack-dev-server/client?http://127.0.0.1:9991/socket.io',
+        'webpack-dev-server/client?http://0.0.0.0:9991/socket.io',
         './static/js/src/main.js',
     ],
     devtool: 'eval',
     output: {
-        publicPath: 'http://127.0.0.1:9991/webpack/',
+        publicPath: 'http://0.0.0.0:9991/webpack/',
         path: './static/js',
         filename: 'bundle.js',
     },