Files
WebForm-mw/next.config.ts
T
Joel Brock 0545dc3bc4 Pin Turbopack root to app dir to stop dev recompile loop
Two package-lock.json files exist (parent civi-webform/ + this app);
Next 16 silently picked the outer one, so Turbopack watched the parent
node_modules/, .claude-flow/, .swarm/, ruvector.db. Background writes
in those trees triggered a recompile loop that thrashed .next/dev and
leaked memory until the dev server crashed. Setting turbopack.root
keeps the watcher scoped to WebForm-mw/.
2026-05-21 11:15:24 -07:00

69 lines
2.6 KiB
TypeScript

import path from "node:path";
import type { NextConfig } from "next";
/**
* Security headers applied to every response.
*
* Notes on each:
* - CSP: tight default; allows Google Fonts (next/font) and the same-origin
* /api routes. No third-party scripts. `frame-ancestors 'none'` prevents
* this app being embedded in another site's iframe.
* - HSTS: only meaningful behind HTTPS (Render terminates TLS, so this is
* correct in production).
* - Permissions-Policy: drop everything we don't use.
* - Referrer-Policy: same-origin — never leak the cid+cs query string to
* other origins via the Referer header.
* - X-Content-Type-Options: prevents MIME sniffing.
*/
// Next.js React dev runtime uses dynamic-script execution for fast-refresh,
// error overlays, and source-map reconstruction. Permit that ONLY in dev so
// HMR works; production CSP stays strict (no dynamic execution allowed).
const isDev = process.env.NODE_ENV !== "production";
const devOnlyDynamicScript = isDev ? " 'unsafe-eval'" : "";
const securityHeaders = [
{
key: "Content-Security-Policy",
value: [
"default-src 'self'",
`script-src 'self' 'unsafe-inline'${devOnlyDynamicScript}`,
"style-src 'self' 'unsafe-inline' https://fonts.googleapis.com",
"font-src 'self' https://fonts.gstatic.com data:",
"img-src 'self' data:",
"connect-src 'self'",
"frame-ancestors 'none'",
"form-action 'self'",
"base-uri 'self'",
"object-src 'none'",
].join("; "),
},
{ key: "Strict-Transport-Security", value: "max-age=63072000; includeSubDomains; preload" },
{ key: "X-Content-Type-Options", value: "nosniff" },
{ key: "Referrer-Policy", value: "same-origin" },
{
key: "Permissions-Policy",
value: "camera=(), microphone=(), geolocation=(), interest-cohort=()",
},
{ key: "X-Frame-Options", value: "DENY" },
];
const nextConfig: NextConfig = {
poweredByHeader: false,
reactStrictMode: true,
// Pin Turbopack's filesystem root to THIS app's directory. Without this,
// Next 16 walks up to the parent civi-webform/ workspace (it sees two
// package-lock.json files and silently picks the outer one), which causes
// Turbopack to watch the parent node_modules/, .claude-flow/, .swarm/, and
// ruvector.db. Background writes in those trees trigger a recompile loop:
// compile → write .next/dev → re-trigger → memory blows up. The build-time
// warning surfaces the same issue.
turbopack: {
root: path.resolve(__dirname),
},
async headers() {
return [{ source: "/:path*", headers: securityHeaders }];
},
};
export default nextConfig;