Format issue regarding naming of config

Author: Jisse-Meruma

config-example.yaml

@@ -45,7 +45,7 @@ grpc_allow_insecure: false
 # - "*" to allow access from any origin (not recommended for sensitive data).
 # - "http://example.com" to only allow access from a specific origin.
 # - "" to disable Cross-Origin Resource Sharing (CORS).
-Access-Control-Allow-Origin: ""
+access_control_allow_origin: ""
 
 # The Noise section includes specific configuration for the
 # TS2021 Noise protocol

hscontrol/types/config.go

@@ -305,7 +305,7 @@ func LoadConfig(path string, isFile bool) error {
 	viper.SetDefault("tuning.batch_change_delay", "800ms")
 	viper.SetDefault("tuning.node_mapsession_buffered_chan_size", 30)
 
-	viper.SetDefault("Access-Control-Allow-Origin", "")
+	viper.SetDefault("access_control_allow_origin", "")
 
 	viper.SetDefault("prefixes.allocation", string(IPAllocationStrategySequential))
 
@@ -872,7 +872,7 @@ func LoadServerConfig() (*Config, error) {
 		GRPCAllowInsecure:  viper.GetBool("grpc_allow_insecure"),
 		DisableUpdateCheck: false,
 
-		AccessControlAllowOrigins: viper.GetString("Access-Control-Allow-Origin"),
+		AccessControlAllowOrigins: viper.GetString("access_control_allow_origin"),
 
 		PrefixV4:     prefix4,
 		PrefixV6:     prefix6,