Bug fix

v2rayN/v2rayN/Handler/CoreConfig/CoreConfigSingbox.cs

@@ -847,7 +847,7 @@ namespace v2rayN.Handler.CoreConfig
                 tag = tag,
                 address = "223.5.5.5",
                 detour = Global.DirectTag,
-                strategy = strategy
+                strategy = Utils.IsNullOrEmpty(strategy) ? null : strategy,
             });
 
             var lstDomain = singboxConfig.outbounds

v2rayN/v2rayN/Handler/Fmt/BaseFmt.cs

@@ -137,6 +137,7 @@ namespace v2rayN.Handler.Fmt
             item.publicKey = Utils.UrlDecode(query["pbk"] ?? "");
             item.shortId = Utils.UrlDecode(query["sid"] ?? "");
             item.spiderX = Utils.UrlDecode(query["spx"] ?? "");
+            item.allowInsecure = (query["allowInsecure"] ?? "") == "1" ? "true" : "";
 
             item.network = query["type"] ?? nameof(ETransport.tcp);
             switch (item.network)