使用cloudflare的worker做代理

addEventListener("fetch", (event) => {
  event.respondWith(
    handleRequest(event.request).catch(
      (err) => new Response(err.stack, { status: 500 })
    )
  );
});

async function handleRequest(request) {
  const urlStr = request.url
  const urlObj = new URL(urlStr)
  const url = urlObj.href.substr(urlObj.origin.length+1).replace("http:/","http://").replace("https:/","https://")
  const headers = {}
  request.headers.forEach((value,index)=>{
    console.log(value,index)
    if(index.indexOf("ip")!=-1 || index.indexOf("cf")!=-1) return;
    headers[index]=value;
  })
   var selfreq=new Request(url, {
    body: request.body,
    headers: headers,
    method: request.method,
    redirect: request.redirect
  })
  return fetch(selfreq, { cf: { scrapeShield: false } })

}