Claude Code Web gotcha: headless Chrome has no GPU, so WebGL silently fell back to CPU
julianharris · x · 2026-11-06
julianharris shares a debugging story with Claude Code Web (which he's used for over a year): a test took 30 minutes, and the cause was that headless Chrome instances have no GPU either — the browser silently fell back to CPU rendering for WebGL.
- Lesson: in cloud/GPU-less browser environments, watch for silent CPU WebGL fallback as the real performance culprit, not your code
- The linked Unix Jelly is a free, open-source, browser-sandboxed tutorial suite (shell, git, web, security) for curious kids 9-14 and adults — no installs, nothing to break
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