!286 此处修改曾导致 nacos修改xss开关时，spring容器未重启，filter仍起效。故增加参数判断，参数刷新后，xss开关正常关闭。

Merge pull request !286 from ylwang/N/A

ruoyi-gateway/src/main/java/com/ruoyi/gateway/filter/XssFilter.java

@@ -42,6 +42,10 @@ public class XssFilter implements GlobalFilter, Ordered
     public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain)
     {
         ServerHttpRequest request = exchange.getRequest();
+        // xss开关未开启 或 通过nacos关闭，不过滤
+        if(!xss.getEnabled()){
+            return chain.filter(exchange);
+        }
         // GET DELETE 不过滤
         HttpMethod method = request.getMethod();
         if (method == null || method == HttpMethod.GET || method == HttpMethod.DELETE)