Access to XMLHttpRequest at 'https://quantcrunch-api.herokuapp.com/api/tickerlist' from origin 'http://localhost:3000' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.
Hey @leo-dh,
Got the CORS policy problem.
I think the issue can be solved here: https://flask-cors.readthedocs.io/en/latest/