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我有一个 React 应用程序并尝试从 aws 访问无服务器。但我有以下错误

No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'https://www.test.com' is therefore not allowed access. The response had HTTP status code 502.

端点网址是https://key.execute-api.ap-southeast-2.amazonaws.com/dev/samplefunction

serverless.yml 上的设置是

login:
    handler: login.login
    events:
      - http:
          path: login
          method: post
          cors:
            origin: 'https://admin.differentdomain.com'
            headers:
              - MY_CUSTOM_HEADER
              - Content-Type
              - X-Amz-Date
              - Authorization
              - X-Api-Key
              - X-Amz-Security-Token

我还需要在其他地方进行 CORS 配置吗?

4

1 回答 1

5

无服务器中的 CORS 设置在此处详细说明:https ://serverless.com/blog/cors-api-gateway-survival-guide/

除了 serverless.yml 中的配置(用于预检请求)之外,您还需要从代码中返回标Access-Control-Allow-Origin头。Access-Control-Allow-Credentials在您的示例和 Node.js 实现中:

  return {
    statusCode: 200,
    headers: {
      'Access-Control-Allow-Origin': 'https://admin.differentdomain.com',
      'Access-Control-Allow-Credentials': true,
    },
    body: {},
  };

确保在第一个标题中包含“https”部分,我之前偶然发现过这个。

于 2019-04-15T14:08:17.190 回答