Hello I pushed a react/express project up to heroku (https://polar-oasis-57801.herokuapp.com/) and received the following errors in the console:
Chrome console error messages
yeah I faced this problem and struggled a lot with it then I follow This helped me: https://github.com/facebook/create-react-app/issues/1812#issuecomment-286511320 link. it definitely works. I am thankful to the person who shares this link.