nextjs14 api route 接口跨域

src/app/api/hello.ts

const corsHeaders = {
  "Access-Control-Allow-Origin": "*",
  "Access-Control-Allow-Methods": "GET, POST, PUT, DELETE, OPTIONS",
  "Access-Control-Allow-Headers": "Content-Type, Authorization",
};

export async function OPTIONS(request: Request) {
  return new Response(null, {
    status: 204,
    headers: corsHeaders,
  });
}

export async function POST(request: Request) {
  return new Response(
    JSON.stringify({
      message: 'hello',
    }),
    {
      headers: corsHeaders,
    }
  );
}

跨域请求会发送 OPTIONS 预检请求，将两次请求都允许请求头即可