diff --git a/api/stream/stream.go b/api/stream/stream.go
index 5e8692f75..9ad54ee0d 100644
--- a/api/stream/stream.go
+++ b/api/stream/stream.go
@@ -196,7 +196,7 @@ func isAllowedOrigin(r *http.Request, allowedOrigins []*regexp.Regexp) bool {
 	}
 
 	for _, allowedOrigin := range allowedOrigins {
-		if allowedOrigin.Match([]byte(strings.ToLower(u.Hostname()))) {
+		if allowedOrigin.MatchString(strings.ToLower(u.Hostname())) {
 			return true
 		}
 	}
diff --git a/auth/cors.go b/auth/cors.go
index ebf2afebd..3cfb1fedc 100644
--- a/auth/cors.go
+++ b/auth/cors.go
@@ -29,7 +29,7 @@ func CorsConfig(conf *config.Configuration) cors.Config {
 		corsConf.AllowHeaders = conf.Server.Cors.AllowHeaders
 		corsConf.AllowOriginFunc = func(origin string) bool {
 			for _, compiledOrigin := range compiledOrigins {
-				if compiledOrigin.Match([]byte(strings.ToLower(origin))) {
+				if compiledOrigin.MatchString(strings.ToLower(origin)) {
 					return true
 				}
 			}