code: func stripBearerPrefixFromTokenString(tok string) (string, error) {
  	// Should be a bearer token
  	if len(tok) > 6 && strings.ToUpper(tok[0:7]) == "BEARER " {
  		return tok[7:], nil
  	}
  	return tok, nil
  }
docs: // Strips 'Bearer ' prefix from bearer token string