Cloudflare Workers 返回 request method、headers、body，用于开发自测请求信息

addEventListener("fetch", event => { event.respondWith(handleRequest(event.request)) }) async function handleRequest(request) { let req = '<table>\n' req += `<tr>\n <td>method</td>\n <td>${request.method}</td>\n</tr>\n` request.headers.forEach((value, key)=>{ req += `<tr>\n <td>${key}</td>\n <td>${value}</td>\n</tr>\n` }) req += `<tr>\n <td>body</td>\n <td>${await request.text()}</td>\n</tr>\n` req += '</table>' return new Response(req, { headers: { 'content-type': 'text/html' } }) }