Python 3.x 了解如何使用CORS获取云函数

我已经部署了中所示的Python云函数

当我从浏览器中获取端点时，如下所示：

fetch('https://this-is-a-secret.cloudfunctions.net/cors-enabled-function',
{method: 'GET'}).then(response => console.log(response))

我得到以下

响应

对象：

Response {type: "cors", url: "https://this-is-a-secret.cloudfunctions.net/cors-enabled-function", redirected: false, status: 200, ok: true, …}
type: "cors"
url: "https://this-is-a-secret.cloudfunctions.net/cors-enabled-function"
redirected: false
status: 200
ok: true
statusText: ""
headers: Headers {}
body: (...)
bodyUsed: false
__proto__: Response

如果我也这样做，但是使用

POST

方法，我会得到完全相同的结果。如果我将方法更改为

PUT

，那么它会抛出一个错误，这是预期的，因为我只允许

GET

方法

我的问题如下： 为什么使用

POST

提取时未显示相同的错误？

如果您设置：

if request.method == 'GET':

1.运行'curl-X POST或PUT url并检查'gcloud functions logs read'将看到：

 Function execution took 9 ms, finished with status code: 200

 Function execution took 13 ms, finished with status code: 204

如果您检查

curl-v

，您将看到标题：

 access-control-allow-origin: *

 < access-control-allow-headers: Content-Type
 < access-control-allow-methods: GET
 < access-control-allow-origin: *
 < access-control-max-age: 3600

2.运行“curl-X GET url”并检查“gcloud函数日志读取”将看到：

 Function execution took 9 ms, finished with status code: 200

 Function execution took 13 ms, finished with status code: 204

如果您检查

curl-v

，您将看到标题：

 access-control-allow-origin: *

 < access-control-allow-headers: Content-Type
 < access-control-allow-methods: GET
 < access-control-allow-origin: *
 < access-control-max-age: 3600

因此，我不明白在运行GET和POST时得到完全相同的结果是什么意思