Function withCors

apps/local/src/serve.ts:408–409

(response: Response)

      routes: { ...staticRoutes },
      async fetch(req) {
        const withCors = (response: Response): Response =>
          withCorsHeaders(req, response, corsAllowedHosts);

        if (req.method === "OPTIONS" && req.headers.has("origin")) {
          return corsPreflightResponse(req, corsAllowedHosts);