Fix webpack-dev-server on Windows (#4000)

* Fix webpack-dev-server on Windows

* Serve webpack from 0.0.0.0, access at 127.0.0.1

bin/webpack-dev-server

@@ -23,7 +23,7 @@ end
 begin
   dev_server = YAML.load_file(CONFIG_FILE)["development"]["dev_server"]
 
-  DEV_SERVER_HOST = "http#{"s" if args('--https') || dev_server["https"]}://#{args('--host') || dev_server["host"]}:#{args('--port') || dev_server["port"]}"
+  DEV_SERVER_HOST = "http#{"s" if args('--https') || dev_server["https"]}://#{dev_server["host"]}:#{args('--port') || dev_server["port"]}"
 
 rescue Errno::ENOENT, NoMethodError
   puts "Webpack dev_server configuration not found in #{CONFIG_FILE}."

config/webpacker.yml

@@ -19,7 +19,7 @@ development:
   <<: *default
 
   dev_server:
-    host: 0.0.0.0
+    host: 127.0.0.1
     port: 8080
     https: false