Parse URL-encoded forms in extended syntax

src/index.js

@@ -26,7 +26,7 @@ const createTestServer = opts => createCert(opts && opts.certificate)
 		app.set('etag', false);
 		app.use(bodyParser.json({ type: 'application/json' }));
 		app.use(bodyParser.text({ type: 'text/plain' }));
-		app.use(bodyParser.urlencoded({ type: 'application/x-www-form-urlencoded' }));
+		app.use(bodyParser.urlencoded({ type: 'application/x-www-form-urlencoded', extended: true }));
 		app.use(bodyParser.raw({ type: 'application/octet-stream' }));
 
 		app.caCert = keys.caCert;