kentico does'nt reply on preflight requests (requests with OPTIONS method)

Hello, I use Kentico 12 I have create an angular aplication that consum kentico data through rest api both are not in the same domain.

I have add a key CMSXFrameOptionsExcluded in appsetings to avoid the x-frame-options in the response

<add key="CMSXFrameOptionsExcluded" value="/rest" />

Due to security reasons, Browser change GET method to OPTIONS and apparently this is not managed by Kentico rest api is it possible to configure that somewhere?