diff --git a/wasm/channels.go b/wasm/channels.go
index ebb8a4119e2d7a12891f3392d430540dcd9b096f..e84ac943a47eb8697aeaa10ea3905699fe65179e 100644
--- a/wasm/channels.go
+++ b/wasm/channels.go
@@ -517,7 +517,7 @@ func GetChannelJSON(_ js.Value, args []js.Value) interface{} {
 		return nil
 	}
 
-	return c
+	return utils.CopyBytesToJS(c)
 }
 
 // GetChannelInfo returns the info about a channel from its public description.