Alex Rivera
ALEX RIVERA
Cloudflare Workers and the serverless edge.
Alex Rivera writes the edge and serverless half of C2CZ. The beat is Cloudflare Workers: runtime errors that only appear once code is live, module resolution and compatibility-date problems, stream and body handling, the limits of the global scope, and the crypto APIs Workers expose.
Method: every article starts from the error string as it is printed, reproduces it in a real Worker, and records the exact version and compatibility date the fix was tested against. Where a limit is documented, it is quoted from the official reference rather than paraphrased.
Articles by Alex Rivera
- importKey on a PEM secret: the Workers ES256 fix · 15 October 2026
- Disallowed operation called within global scope: the fix · 11 October 2026
- Workers EvalError: code generation from strings disallowed · 07 October 2026
- "The script will never generate a response" in Workers · 03 October 2026
- "Cannot perform I/O on behalf of a different request" fix · 30 September 2026
- ERR_MODULE_NOT_FOUND: imported from (six causes, measured) · 26 September 2026
- Workers: No such module "node:buffer" (compat date fix) · 24 September 2026
- Cloudflare Workers: "Body has already been used" fix · 23 September 2026
- Cloudflare "Handler does not export a fetch() function" · 19 September 2026
- Cloudflare Workers: "code had hung" Error 1101 fix · 15 September 2026
- Cloudflare Error 1042: Worker Fetch to Same Zone Fails · 10 September 2026
- Cloudflare Error 1016 Origin DNS Error: Fix in Workers · 06 September 2026
- Cloudflare Error 1102 CPU Time Limit Exceeded: Fix · 02 September 2026
- Cloudflare Error 1101 Worker Threw Exception: Fix · 29 August 2026
- Turso SERVER_ERROR: 404 Right After Creating a Database · 23 August 2026