重定向在轨道上为预检角给予响应是无效的错误

Question

我有前端的应用程序中的角4和导轨后端5.

我已经集成在我的应用程序的支付服务，这将成功响应发布回给定的url。由于响应是后格式，因此我无法在angular上处理它。因此，我将后端的url作为重定向url。

现在我想重定向到前端（角）提供支付服务的响应。

在使用Rails redirect_to的方法，它给我的错误：

Response for preflight is invalid

但有时候错误是

Request header field Authorization is not allowed by Access-Control-Allow-Headers in preflight response.

如何解决这个问题？

Answer 1

请参阅以下文档，并遵循如何避免提前发送请求。如果飞行前请求是必须的，则需要使用正确的方法，来源和标头在服务器中进行修复。

当发送预检请求时，将在以下文档中明确记录。

https://developer.mozilla.org/en-US/docs/Web/HTTP/Access_control_CORS

In particular, a request is preflighted if any of the following conditions is true: 

If the request uses any of the following methods: 
PUT 
DELETE 
CONNECT 
OPTIONS 
TRACE 
PATCH 
Or if, apart from the headers set automatically by the user agent (for example, Connection, User-Agent, or any of the other header with a name defined in the Fetch spec as a “forbidden header name”), the request includes any headers other than those which the Fetch spec defines as being a “CORS-safelisted request-header”, which are the following: 
Accept 
Accept-Language 
Content-Language 
Content-Type (but note the additional requirements below) 
Last-Event-ID 
DPR 
Downlink 
Save-Data 
Viewport-Width 
Width 
Or if the Content-Type header has a value other than the following: 
application/x-www-form-urlencoded 
multipart/form-data 
text/plain 
Or if one or more event listeners are registered on an XMLHttpRequestUpload object used in the request. 
Or if a ReadableStream object is used in the request.