Problem to consume an API using JWT

Dear All,

 I'm tring to use an API with JWT authentication, with PostMan or Insomnia works fine, I tested also via Insomina putting JWT in header in the same way used by AppGyver, this is a return message:

Error: TypeError: Failed to fetch. Does the server allow CORS?status: undefined

Resource settings for Get collection (GET)

 Someone know what is this issue ?

Best Regards,

Júlio Zanutto

I solved this CORS problema adding CORS Headers on Server Side.