loop-breaker

To stop Cloudflare Worker recursion, apply a max-depth recursion guard middleware to your app and propagate loop depth headers across outgoing requests to safely halt looping behavior.

A recursion depth guard is a middleware that caps nested fetches and worker calls. It works by propagating loop depth headers via outgoing requests to track and limit recursive invocations.

To prevent loops in Durable Objects and queue handlers, implement queue- and service-bindings aware patterns that apply loop protection, avoiding long-lived timers and unnecessary billing.

Yes, you can use loop protection middleware for event-driven Cloudflare Worker webhooks. It applies during inter-worker calls and event handlers where recursive invocations can occur.

Cloudflare Worker self-recursion causes denial-of-wallet scenarios because runaway loops balloon costs through uncontrolled nested fetches and repeated invocations across inter-worker calls.

The best way to limit nested fetches in inter-worker calls is applying a recursion depth middleware that caps nested worker calls and propagates depth headers across outbound requests.