修正allow_http2的显示、bypass的自定义域改成null的json

src/main/java/com/nis/web/service/configuration/ConfigSynchronizationService.java

@@ -432,6 +432,8 @@ public class ConfigSynchronizationService  extends BaseService{
 							if(!StringUtil.isEmpty(cfg.getUserRegion1())&&cfg.getUserRegion1().startsWith("{")) {
 								userRegion=cfg.getUserRegion1();
 							}
+						}else if(entity.getServiceId().equals(521)) {
+							userRegion="{}";
 						}else{
 							/*if(regionKey.equals("keyring_id") && StringUtil.isEmpty(value)){
 								value = "0";