如何快速停止 HTTPS 308 永久重定向？

我有一个快速Compute@Edge配置为对前端域和后端主机使用HTTP的服务，但当我连接时，会收到308 https重定向，我想停止该重定向。我希望它只运行并返回似乎没有执行的边缘函数代码。

我的域名是www.goodapis.comCNAME配置为指向nonssl.global.fastly.net.如图所示：

% dig www.goodapis.com +short
nonssl.global.fastly.net.
151.101.188.204

我的后端主机指向example.com:80（也没有TLS）。

我的边缘代码包来自以下repo：

https://github.com/fastly/compute-starter-kit-javascript-default

使用以下代码（此处删除了一些注释）：

https://github.com/fastly/compute-starter-kit-javascript-default/blob/main/src/index.js

//! Default Compute@Edge template program.

/// 
import welcomePage from "./welcome-to-compute@edge.html";

// The entry point for your application.
//
// Use this fetch event listener to define your main request handling logic. It could be
// used to route based on the request properties (such as method or path), send
// the request to a backend, make completely new requests, and/or generate
// synthetic responses.

addEventListener("fetch", (event) => event.respondWith(handleRequest(event)));

async function handleRequest(event) {
  // Get the client request.
  let req = event.request;

  // Filter requests that have unexpected methods.
  if (!["HEAD", "GET"].includes(req.method)) {
    return new Response("This method is not allowed", {
      status: 405,
    });
  }

  let url = new URL(req.url);

  // If request is to the `/` path...
  if (url.pathname == "/") {
    // 
    // Send a default synthetic response.
    return new Response(welcomePage, {
      status: 200,
      headers: new Headers({ "Content-Type": "text/html; charset=utf-8" }),
    });
  }

  // Catch all other requests and return a 404.
  return new Response("The page you requested could not be found", {
    status: 404,
  });
}

然而，当我打电话时http://www.goodapis.com，我得到一个308永久重定向到https://www.goodapis.com.在清除整个缓存后也会发生这种情况。

% curl http://www.goodapis.com --verbose
*   Trying 151.101.40.204:80...
* Connected to www.goodapis.com (151.101.40.204) port 80 (#0)
> GET / HTTP/1.1
> Host: www.goodapis.com
> User-Agent: curl/7.77.0
> Accept: */*
> 
* Mark bundle as not supporting multiuse
< HTTP/1.1 308 Permanent Redirect
< Server: Varnish
< Retry-After: 0
< Content-Length: 0
< Location: https://www.goodapis.com/
< Accept-Ranges: bytes
< Date: Mon, 23 May 2022 21:08:25 GMT
< Via: 1.1 varnish
< Connection: close
< X-Served-By: cache-sjc10043-SJC
< X-Cache: HIT
< X-Cache-Hits: 0
< 
* Closing connection 0

有人知道308重定向为什么会发生，以及如何停止吗？