Corporate proxy (Zscaler) causes npm to fail inside Docker builds with
'Exit handler never called' error. This approach builds frontend on host
where npm works, then copies pre-built dist/ into Docker image.
New files:
- Dockerfile.prebuilt: Single-stage build, copies frontend/dist
- docker-compose.prebuilt.yml: Uses Dockerfile.prebuilt
- .dockerignore.prebuilt: Allows frontend/dist to be included
- start-docker-quick.sh: Quick restart without rebuild
- DOCKER-PREBUILT-APPROACH.md: Documents workaround and comparison
Benefits:
- Builds in 2-3 minutes (not 15+)
- Works behind corporate proxy
- Simpler to debug
- Faster iteration
Trade-off: Requires npm on host, two-step build process
For production: CI/CD builds frontend + image, pushes to registry
