Cloudflare DevelopersCD
Cloudflare Developers•14mo ago
PwnageEverywhere

Origin Rules for reverse proxy

I’m setting up a reverse proxy using Cloudflare origin rules and could use some help troubleshooting.

The goal is to have two rules in place:

  1. Primary Rule: Requests to app.example.com/api/endpoint* (including any query strings) should route to app.otherdomain.com/api/endpoint, passing along any query string parameters.
  2. Fallback Rule: Requests that do not match the URI patterns described in the primary rule should route to app2.otherdomain.com/whatever.
I’ve set up the primary rule, and it appears to work on its own, correctly matching and routing requests to the intended origin. However, when I add the fallback rule (configured with a custom “place at” to execute after the primary rule), the routing stops working as expected. Instead of acting as a catch-all, the fallback rule seems to interfere with the first rule.

Is there something I might be missing in the rule setup or ordering that could be causing this conflict? Any insights would be appreciated!
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