Cloudflare设置回源端口

** Cloudflare支持的端口

HTTP协议
80
8080
8880
2052
2082
2086
2095
HTTPS协议
443
2053
2083
2087
2096
8443

** Cloudflare非标准端口自动重定向
使用Cloudflare workers

export default {
  async fetch(request) {
    const base = "https://example.com:8443";
    const statusCode = 301;

    const url = new URL(request.url);
    const { pathname, search } = url;

    const destinationURL = `${base}${pathname}${search}`;
    return Response.redirect(destinationURL, statusCode);
  },
};