Example Error: Access to XMLHttpRequest at 'https://api-iam.intercom.io/messenger/web/ping' from origin 'https://not-my-real-domain.com#39; has been blocked by CORS policy: The value of the 'Access-Control-Allow-Origin' header in the response must not be the wildcard '*' when the request's credentials mode is 'include'. The credentials mode of requests initiated by the XMLHttpRequest is controlled by the withCredentials attribute.
Best answer by Eric Fitz
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