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fix: document unsafe-* CSP directives #56

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mitoperni merged 1 commit into from
Feb 9, 2026
Merged

fix: document unsafe-* CSP directives #56

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8 changes: 8 additions & 0 deletions next.config.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -31,7 +31,15 @@ const nextConfig: NextConfig = {
key: 'Content-Security-Policy',
value: [
"default-src 'self'",
// unsafe-eval: Required by Mapbox GL JS - uses new Function() internally
// to compile style expressions (filters, conditional colors).
// Without it, the map fails to render. See: https://github.com/mapbox/mapbox-gl-js/issues/3773
// unsafe-inline: Required by Next.js for hydration bootstrap scripts
// and JSON-LD scripts using dangerouslySetInnerHTML.
// Alternative: nonce-based approach via middleware (adds complexity).
"script-src 'self' 'unsafe-inline' 'unsafe-eval' https://api.mapbox.com https://vercel.live",
// unsafe-inline: Required by Mapbox GL JS - injects inline styles
// to position map elements (markers, popups, controls).
"style-src 'self' 'unsafe-inline' https://api.mapbox.com https://vercel.live",
"img-src 'self' data: blob: https://api.mapbox.com https://tiles.mapbox.com https://vercel.live https://vercel.com",
"font-src 'self' https://vercel.live https://assets.vercel.com",
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