Does anyone know what would cause one API/Application from API Explorer to send a CORS preflight to the gateway while another does not? We have two portal published API's, sending both with an API key. One of them sends two requests that show up in the audit, the first apparently being a preflight that "fails", as you might expect because the "Portal Service Preface" apparently identifies it as "cors.isPreflight". The second works. So the test succeeds, it's just odd that we have another API that when tested in the same manner works with a single run.