javascript - Private prerender server wont render angularjs scripts? -

i want create prerendered pages search engines. using mean stack (mongo,express,angular,node). decided create own prerender server.

i have deployed heroku following commands:

$ git clone https://github.com/prerender/prerender.git $ heroku create $ git push heroku master

and have own prerender server, work if add /https://www.google.com or /http://stackoverflow.com.

but doesn't work angular app, deployed on heroku.
can write http://mysites.com/?_escaped_fragment_=thinkpad/t-400
and bunch of {{not rendered angular}}

i have <meta name="fragment" content="!"> in index.html.

i have

app.use(require('prerender-node').set('prerenderserviceurl', 'prerender-server-url'));

in express.js.

how can make work?

verify not using newer es6 features supported browsers, not yet supported prerender js engine.

UV code