Unable to validate my url

[JFCote]

When I try my spec url: https://cs-dev.business.stingray.com/assets/swagger.yaml

I get this error:

Failed to load API definition.
Errors
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Fetch errorFailed to fetch https://cs-dev.business.stingray.com/assets/swagger.yaml
Fetch errorPossible cross-origin (CORS) issue? The URL origin (https://cs-dev.business.stingray.com) does not match the page (http://validator.swagger.io). Check the server returns the correct 'Access-Control-Allow-*' headers.

Is there something wrong in the response header that I need to change? Is that a bug on your side? The documentation of validator-badge specifically specify this: Since the validator uses a browserless back-end to fetch the contents and schema, it's not subject to the terrible world of CORS.

[JFCote]

@gracekarina is this project still alive?