Add /admin/ aliases for other endpoints

app/staticcms/app.js

@@ -11,25 +11,34 @@ app.use(publicHandler)
 app.use('/admin', publicHandler)
 
 // Serve CMS source files
+const cmsHandler = express.static('./app/dist');
 app.use('/cms', express.static('./app/dist'))
+app.use('/admin/cms', express.static('./app/dist'))
 
-app.get('/config.yml', (req, res) => {
+const configHandler = (req, res) => {
     res.sendFile(
         './config.yml',
         { root: path.join(__dirname, "..")
-    });
-});
+        });
+};
+app.get('/config.yml', configHandler);
+app.get('/admin/config.yml', configHandler);
 
 // Pass requests to OAuth routes to `netlify-cms-github-oauth-provider` project
 const oauth_provider_app = require('../netlify-cms-github-oauth-provider/app.js');
-app.use('/auth', function(req, res, next) {
+const authHandler = function(req, res, next) {
     req.url = '/auth';
     oauth_provider_app(req, res, next)
-});
-app.use('/callback', function(req, res, next) {
+};
+app.use('/auth', authHandler);
+app.use('/admin/auth', authHandler);
+
+const callbackHandler = function(req, res, next) {
     req.url = '/callback';
     oauth_provider_app(req, res, next)
-});
+};
+app.use('/callback', callbackHandler);
+app.use('/admin/callback', callbackHandler);
 
 app.listen(port, () => {
   console.log(`Static CMS listening on port ${port}`)