[SSL/TLS] Fix mTLS debugging Worker example

[shblue21]

Summary

Updates the mTLS advanced debugging Worker to call fetch(request) after logging request.cf, so requests reach the origin. Adds a warning that global_fetch_strictly_public can route the subrequest back to the same Worker.

Screenshots (optional)

Documentation checklist

• The change adheres to the documentation style guide.

[cloudflare-docs-bot]

Review

⚠️ 1 warning found in commit 9a2f497.

👉 Fix in your agent 👈

Fix the following review findings in PR #32563 (https://github.com/cloudflare/cloudflare-docs/pull/32563).

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---

## Code Review

### Warnings (1)

#### CR-49fb07929271 · Same-zone fetch may recurse to the Worker
- **File:** `src/content/docs/ssl/client-certificates/troubleshooting.mdx` line 82
- **Issue:** The debugging Worker calls `return fetch(request);` on line 82. The worker is attached to the same hostname via a route, so the request URL matches the Worker's own route. With the `global_fetch_strictly_public` compatibility flag enabled, Cloudflare routes the subrequest back through the "front door," which can re-invoke the same Worker and hit the loop limit instead of reaching the origin.
- **Fix:** Avoid relying on same-zone `fetch(request)` to reach the origin. Use an explicit origin target (for example, a service binding to the origin or a rewritten origin URL if the user has origin details), or document that this pattern requires `global_fetch_strictly_public` to be disabled.

Code Review

This code review is in beta and may not always be helpful — use your judgment.

Warnings (1)

File

Issue

ssl/client-certificates/troubleshooting.mdx line 82

Same-zone fetch may recurse to the Worker — The debugging Worker calls return fetch(request); on line 82. The worker is attached to the same hostname via a route, so the request URL matches the Worker's own route. With the global_fetch_strictly_public compatibility flag enabled, Cloudflare routes the subrequest back through the "front door," which can re-invoke the same Worker and hit the loop limit instead of reaching the origin. Fix: Avoid relying on same-zone fetch(request) to reach the origin. Use an explicit origin target (for example, a service binding to the origin or a rewritten origin URL if the user has origin details), or document that this pattern requires global_fetch_strictly_public to be disabled.

Conventions

_{No convention issues found.}

Style Guide Review

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