How to send bearer token authorization header to query REST API

What is the correct method to configure bearer token authorization header to query my REST API? I entered the token in Appgyver under HTTP Header section of config screen. In postman the bearer token is working fine. See my postman screen here with bearer token working. See my settings in appgyver here: And see the response I get in Appgyver when I test it I am getting the following error message: Error: TypeError: Failed to fetch. Does the server allow CORS?status: undefined

OAuth 2.0 App-Only (Bearer Token), Docs

Refresh an Access Token - Box Developer Documentation

How to add Authorization: Bearer token with JSON datasource plugin - Grafana Plugin Development - Grafana Labs Community Forums

Configuring the authentication credentials of REST API web services - Documentation for BMC Helix Platform 20.08 - BMC Documentation

How to send bearer token authorization header to query REST API - Question - AppGyver

HTTP

Oauth2 Advanced Options

How to send bearer token authorization header to query REST API - Question - AppGyver

OAuth 2.0

How to send bearer token authorization header to query REST API - Question - AppGyver

What is Bearer token and How it works?

Configure the Header to Carry the Bearer Token

Authorization types in Postman including No Auth, Basic Auth, Digest Auth, Bearer Token, OAuth - Coding Ninjas

Calling an External REST API using OAuth2.0 “Bearer” Authentication via C4C SDK

reactjs - issue with the Authorisation: Bearer access_token (the headers) in Axios POST in reacts - Stack Overflow