Support extra middleware mounted after by calling next().

This is helpful if you want to add something like newrelic

Author: mic159

package.json

@@ -10,8 +10,8 @@
     "body-parser": "^1.15.2",
     "express": "^4.14.0",
     "morgan": "^1.7.0",
-    "react-dom": "16.4.1",
     "react": "16.4.1",
+    "react-dom": "16.4.1",
     "yargs": "^3.29.0"
   },
   "peerDependencies": {

render.js

@@ -68,7 +68,7 @@ Component.prototype.render = function render(props, toStaticMarkup, callback) {
   }
 };
 
-app.post('/render', function service(request, response) {
+app.post('/render', function service(request, response, next) {
   var toStaticMarkup = request.body.to_static_markup || false;
   var pathToSource = request.body.path_to_source;
   var props = request.body.props || {};
@@ -91,12 +91,14 @@ app.post('/render', function service(request, response) {
 
   component.render(props, toStaticMarkup, function(output) {
     response.send(output);
+    next();
   });
 });
 
 function errorHandler(err, request, response, next) {
   console.log('[' + new Date().toISOString() + '] ' + err.stack);
   response.status(500).send(argv.debug ? err.stack : err.toString());
+  next();
 }
 app.use(errorHandler);