addEventListener('fetch', event => {
  event.respondWith(handleRequest(event.request))
})

async function handleRequest(request) {
  const targetUrl = "http://jyrg.cc:3000"; // 目标服务器地址
  const url = new URL(request.url);
  const path = url.pathname + url.search;

  // 构造新请求
  const newRequest = new Request(targetUrl + path, {
    headers: request.headers,
    method: request.method,
    body: request.body,
    redirect: 'follow'
  });

  const response = await fetch(newRequest);
  const modifiedResponse = new Response(response.body, response);
  
  // 允许跨域访问（可选）
  modifiedResponse.headers.set('Access-Control-Allow-Origin', '*');
  return modifiedResponse;
}