[Apiman-user] Client App and CORS

Dears, I've created a "client app" that has a lot of contracts with a lot of APIs. I'm having the following problem: In Cross-origen, when the browser send a OPTIONS request, it does not send the parameter X-API-Key. Then, the apiman returns a error: "API not public". Is possible to disable the X-API-Key validation of a "client app" when the request is OPTIONS type? Thanks, Harry