Fixing intermittent hangs in x402 paid endpoints on Cloudflare Workers (Hono)

If you put an x402 paid endpoint on Cloudflare Workers with Hono and @x402/hono, it will probably pass your first curl test. Then, under real mixed traffic, some paid requests hang until the client times out. A buyer agent that times out once usually doesn't come back, so this matters more than it looks. I hit two separate hangs while running a small pay-per-call API, and here is what caused each one and the code that fixed them. Everything below is free to copy. Symptom An unpaid