remove powered-by header

src/server.ts

@@ -15,6 +15,7 @@ import { Options } from './types';
 export default function createServer(opts : Options) : express.Application {
     const app = express();
 
+    app.disable('x-powered-by');
     if (process.env.NODE_ENV !== 'test') {
         app.use(logging);
     }

tests/server.test.ts

@@ -20,6 +20,21 @@ describe('Server', function () {
        });
     });
 
+    it('Should nave no x-powered-by header', function (done) {
+       runServer({
+           allowed_ips: [],
+           basicAuth: [],
+           dirList: false,
+           serveDir: 'site/',
+           opbeat: false,
+           open: false
+       }, '/index.html', function (response : any) {
+              expect(response.status).to.equal(200);
+              expect(response.headers.get('x-powered-by')).to.equal(null);
+              done();
+       });
+    });
+
     describe('index route', function () {
         const body = fs.readFileSync(path.join(__dirname, '..', 'site', 'index.html')).toString();