From 3c03f222316c633bccf0b543296890e44f27ffe5 Mon Sep 17 00:00:00 2001
From: afc163 <afc163@gmail.com>
Date: Sat, 13 Jan 2018 19:46:35 +0800
Subject: [PATCH] Fix firefox error, close #677

---
 src/components/Authorized/CheckPermissions.js | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/components/Authorized/CheckPermissions.js b/src/components/Authorized/CheckPermissions.js
index c1d6647d..a62deed4 100644
--- a/src/components/Authorized/CheckPermissions.js
+++ b/src/components/Authorized/CheckPermissions.js
@@ -1,6 +1,11 @@
 import React from 'react';
 import PromiseRender from './PromiseRender';
 import { CURRENT } from './index';
+
+function isPromise(obj) {
+  return !!obj && (typeof obj === 'object' || typeof obj === 'function') && typeof obj.then === 'function';
+}
+
 /**
  * 通用权限检查方法
  * Common check permissions method
@@ -32,7 +37,7 @@ const checkPermissions = (authority, currentAuthority, target, Exception) => {
   }
 
   // Promise 处理
-  if (authority.constructor.name === 'Promise') {
+  if (isPromise(authority)) {
     return () => (
       <PromiseRender ok={target} error={Exception} promise={authority} />
     );
-- 
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