API Gateway Method CORS ERROR - CloudFormation

Hello Please when try to use my API Gateway im my react i get this error but in Postman i works fine

Access to fetch at 'https://api.domainz.com/prod/sp/' from origin 'http://localhost:8100' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. If an opaque response serves your needs, set the request's mode to 'no-cors' to fetch the resource with CORS disabled.

Please help How do i enable cors from my cloud formation API Gateway Method

he is my Method Code In cloudformation

spPOSTMethod:
    Type: AWS::ApiGateway::Method
    DeletionPolicy: Delete
    Properties:
      AuthorizationType: NONE #Options [CUSTOM, COGNITO_USER_POOLS, COGNITO, NONE, OAUTH2]
      HttpMethod: POST #Options [GET, POST, PUT, DELETE, PATCH, ANY]
      ResourceId: !ImportValue ExSpResources
      RestApiId: !ImportValue ExAppAPI
      Integration:
        Type: AWS_PROXY #Options [AWS_PROXY, AWS, HTTP, MOCK, AWS_PROXY_V2]
        IntegrationHttpMethod: POST #[For Lambda POST][For MOCK this property is optional]
        Uri: !Sub arn:aws:apigateway:${AWS::Region}:lambda:path/2015-03-31/functions/${spEventNLFn.Arn}/invocations

      RequestModels:
        application/json: !Ref spEventModel
      RequestValidatorId: !Ref spEventPOSTMethodValidator