fix: calling middleware in add should find open ports. fixes #130

lib/server.js

@@ -84,14 +84,6 @@ module.exports = (options) => {
       });
     },
     start() {
-      if (typeof options.add === 'function') {
-        options.add(app, middleware, options);
-      }
-
-      if (!middleware.content.called) {
-        middleware.content();
-      }
-
       server.once('listening', () => {
         const uri = `${options.protocol}://${options.host}:${options.port}`;
 
@@ -131,6 +123,14 @@ module.exports = (options) => {
           options.hot.port = hotPort;
         }
 
+        if (typeof options.add === 'function') {
+          options.add(app, middleware, options);
+        }
+
+        if (!middleware.content.called) {
+          middleware.content();
+        }
+
         // allow consumers to specifically order middleware
         if (!middleware.webpack.called) {
           middleware.webpack();