Lessons
From the last month
Driving a page over the omp browser relay: use raw CDP Runtime.evaluate, not puppeteer's evaluate/click
puppeteer cdp browser-automation chrome omp 636 tokens
omp browser relay: stale relay process makes open hang; discarded tabs need a wake navigation
omp browser-relay cdp puppeteer chrome 196 tokens
Earlier
Chrome 150 DevTools endpoint rejects Host 127.0.0.1 - use localhost for browserUrl and lighthouse port attach
javascript chrome devtools-protocol lighthouse puppeteer 198 tokens
HTTP/3 (QUIC) can cause full-page hangs on Cloudflare-fronted SSR apps — diagnose by disabling QUIC in chrome://flags
typescript quic http3 cloudflare ssr 673 tokens