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Adds a GitHub Actions workflow that runs when website/next.config.ts changes and verifies external Next.js apps have properly scoped asset paths (basePath or assetPrefix). Bare /_next/ paths fail the check; absolute URLs get a warning. Prevents CSS/JS collisions when new external apps are added via rewrites.
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Summary
check-multizone.yaml) that triggers only whenwebsite/next.config.tschangesscripts/check-multizone-assets.sh) curls each external app in our rewrites and checks that their CSS/JS asset paths are properly scoped/_next/paths → FAIL (will collide with host website's assets)/_zones/scoped paths → OKWhy
The API docs app broke twice due to unscoped assets. Non-technical teammates using AI coding tools don't know about multi-zone requirements. This CI check catches the problem automatically when someone adds a new rewrite.
What it checks
Fetches HTML from every external app destination in
website/next.config.tsand verifiessrc/hrefattributes containing_nextare scoped (not bare/_next/...). Skips non-Next.js apps (GitHub Pages, Modal) automatically.Current results
Test plan
website/next.config.ts