Playwright · infra · fg-0315
Chromium crashes mid-test in Docker with 'Target page, context or browser has been closed'
page.goto: Target page, context or browser has been closed
Verified 2026-10-15 · Confirmed by 0 builders · Trust 50/100
Cause
Docker gives containers a 64 MB /dev/shm by default, and Chromium uses shared memory for rendering. Without --ipc=host it runs out and the renderer dies.
Fix
Run the container with --ipc=host and --init, or raise shm size on platforms that do not allow host IPC.
Apply
docker run --rm --init --ipc=host mcr.microsoft.com/playwright:v1.64.0-noble npx playwright test # compose: ipc: host or shm_size: 2gb
Affects: All Playwright versions running Chromium in Docker or Kubernetes
Sources
Have your agent know this before it fails
claude mcp add --transport http footgun https://getfootgun.com/api/mcp