infisical/frontend/next.config.js

// next.config.js

const ContentSecurityPolicy = `
	default-src ${process.env.NEXT_PUBLIC_WEBSITE_URL};
	script-src ${process.env.NEXT_PUBLIC_WEBSITE_URL} https://app.posthog.com https://infisical.com https://assets.calendly.com/ https://js.stripe.com https://api.stripe.com 'unsafe-inline' 'unsafe-eval';
	style-src 'self' https://rsms.me 'unsafe-inline';
	child-src https://infisical.com https://api.stripe.com;
	frame-src https://js.stripe.com/ https://api.stripe.com;
	connect-src ws://${process.env.NEXT_PUBLIC_WEBSITE_URL?.split('//')[1]} ${process.env.NEXT_PUBLIC_WEBSITE_URL} https://api.github.com/repos/Infisical/infisical-cli https://api.heroku.com/ https://id.heroku.com/oauth/authorize https://id.heroku.com/oauth/token https://checkout.stripe.com https://app.posthog.com https://infisical.com https://api.stripe.com https://vitals.vercel-insights.com/v1/vitals;
	img-src 'self' https://*.stripe.com https://i.ytimg.com/ data:;
	media-src;
	font-src 'self' https://maxcdn.bootstrapcdn.com https://rsms.me https://fonts.gstatic.com;  
`;

// You can choose which headers to add to the list
// after learning more below.
const securityHeaders = [
	{
		key: "X-DNS-Prefetch-Control",
		value: "on",
	},
	{
		key: "Strict-Transport-Security",
		value: "max-age=63072000; includeSubDomains; preload",
	},
	{
		key: "X-XSS-Protection",
		value: "1; mode=block",
	},
	{
		key: "X-Frame-Options",
		value: "SAMEORIGIN",
	},
	{
		key: "Permissions-Policy",
		value: "camera=(), microphone=()",
	},
	{
		key: "X-Content-Type-Options",
		value: "nosniff",
	},
	{
		key: "Referrer-Policy",
		value: "strict-origin-when-cross-origin",
	},
	{
		key: "Content-Security-Policy",
		value: ContentSecurityPolicy.replace(/\s{2,}/g, " ").trim(),
	},
];

module.exports = {
	output: 'standalone',
	async headers() {
		return [
			{
				// Apply these headers to all routes in your application.
				source: "/:path*",
				headers: securityHeaders,
			},
		];
	},
};