ERR_TOO_MANY_REDIRECTS when deploying Flutter Web app with a Cloudflare proxy

Questions / Help
2

@LuchoTurtle consider reframing your question to focus on the more general issue:
subdomain routing to a static website hosted on Fly.io …

  1. Deployed our Flutter Web App to Fly.io and it’s working: https://dwylapp.fly.dev :white_check_mark:
  2. We have deployed Phoenix Apps to Fly.io in the past and they have worked with a subdomain defined in Cloudflare e.g: https://hits.dwyl.com or https://auth.dwyl.com
  3. We have followed the steps that worked for us in the past to setup a subdomain on Cloudflare to point https://app.dwyl.com to https://dwylapp.fly.dev but are getting a Redirect error:

image
image1794×1064 139 KB

We don’t think this is a Cloudflare issue because the CNAME record is just:

cloudflare-cname
cloudflare-cname2930×1134 278 KB

Which is what the flyctl CLI recommended, see: Chore: investigate "redirected you too many times." error for `app.dwyl.com` · Issue #316 · dwyl/app · GitHub

So our question is: does anyone else in the Fly.io community/team have experience with configuring subdomains for static websites (which is all our Flutter Web App is …)?
Has anyone experienced this redirect issue before?

Thanks!