AWS::Serverless::Api and AWS::Serverless::HttpApi have slightly different CORS origin property names

[mcavag]

The CorsConfiguration for AWS::Serverless::Api includes the following properties:

  AllowHeaders: String
  AllowMethods: String
  AllowOrigin: String <-- No S on the end of 'AllowOrigin'

The HttpApiCorsConfiguration for AWS::Serverless::HttpApi includes these properties:

 AllowHeaders: List
 AllowMethods: List
 AllowOrigins: List <-- But this one does have one

If you switch from a REST API to HTTP API and retain the same CORS configuration, you will get an error from this line of code:

Invalid value for 'Cors' property.

This is a difficult error to figure out. I ended up having to read the source code.

If the property name can't be changed, it would at least be helpful to include the name of the invalid property in the error message as a clue.

[aaythapa]

Thanks for opening this issue! Closing it for now as it was addressed in the PR

[github-actions]

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