Netlify draft link in browser does not display anything

this is my link for client side of the application. It does not display any error but it display nothing but blank page in browser. I already connect with the server side where i hosted on heroku. the response is 200 i think its just fine. How i can solve this problem?

hi there, looks like you are having quite a few javascript errors in your browser console when i pull up that page and take a closer look: