Question

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.

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

在serverless.yml上设置是

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

我还需要其他地方进行CORS配置吗？

Answer 1

在Serverless中的CORS设置在这里详细说明：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头Access-Control-Allow-Origin和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: {},
  };

请确保在第一个标头中包含“ https”部分，我之前偶然发现了该内容。

无服务器yml上的CORS

1 个答案: