Connect cloudflare to heroku with Full SSL

Question

I have a Heroku app with a free account. I also have a free account in Cloudflare.

I am trying to connect them with a Full SSL connection. In cloudflare, I see the following state:

However, I can't access my website with a secure connection. I am getting an error 525:

I think the problem is with the settings in Heroku but I can't find much information online...

Any suggestions?

Answer 1

Use the app URL (appname.herokuapp.com) as CNAME value instead of the domain generated by Heroku.

Resource: https://help.heroku.com/GVS2BTB5/why-am-i-getting-error-525-ssl-handshake-failed-with-cloudflare-when-using-a-herokudns-com-endpoint