diff --git a/dist/iframe-shim-debug.js b/dist/iframe-shim-debug.js
index cbaf7eb..d722e51 100644
--- a/dist/iframe-shim-debug.js
+++ b/dist/iframe-shim-debug.js
@@ -1,6 +1,7 @@
-define("arale/iframe-shim/1.0.1/iframe-shim-debug", [ "$-debug", "arale/position/1.0.0/position-debug" ], function(require, exports, module) {
+define("arale/iframe-shim/1.0.2/iframe-shim-debug", [ "$-debug", "arale/position/1.0.0/position-debug" ], function(require, exports, module) {
     var $ = require("$-debug");
     var Position = require("arale/position/1.0.0/position-debug");
+    var isIE6 = (window.navigator.userAgent || "").toLowerCase().indexOf("msie 6") !== -1;
     // target 是需要添加垫片的目标元素，可以传 `DOM Element` 或 `Selector`
     function Shim(target) {
         // 如果选择器选了多个 DOM，则只取第一个
@@ -39,12 +40,14 @@ define("arale/iframe-shim/1.0.1/iframe-shim-debug", [ "$-debug", "arale/position
         }
         delete this.target;
     };
-    if ($.browser.msie && $.browser.version === "6.0") {
+    if (isIE6) {
         module.exports = Shim;
     } else {
         // 除了 IE6 都返回空函数
         function Noop() {}
-        Noop.prototype.sync = Noop;
+        Noop.prototype.sync = function() {
+            return this;
+        };
         Noop.prototype.destroy = Noop;
         module.exports = Noop;
     }
@@ -70,4 +73,4 @@ define("arale/iframe-shim/1.0.1/iframe-shim-debug", [ "$-debug", "arale/position
             css: css
         }).insertBefore(target);
     }
-});
\ No newline at end of file
+});
diff --git a/dist/iframe-shim.js b/dist/iframe-shim.js
index 872eab0..f716d42 100644
--- a/dist/iframe-shim.js
+++ b/dist/iframe-shim.js
@@ -1 +1 @@
-define("arale/iframe-shim/1.0.1/iframe-shim",["$","arale/position/1.0.0/position"],function(a,b,c){function f(a){this.target=d(a).eq(0)}function g(){}function h(a){var b={display:"none",border:"none",opacity:0,position:"absolute"},c=a.css("zIndex");return c&&c>0&&(b.zIndex=c-1),d("<iframe>",{src:"javascript:''",frameborder:0,css:b}).insertBefore(a)}var d=a("$"),e=a("arale/position/1.0.0/position");f.prototype.sync=function(){var a=this.target,b=this.iframe;if(!a.length)return this;var c=a.outerHeight(),d=a.outerWidth();return c&&d&&!a.is(":hidden")?(b||(b=this.iframe=h(a)),b.css({height:c,width:d}),e.pin(b[0],a[0]),b.show()):b&&b.hide(),this},f.prototype.destroy=function(){this.iframe&&(this.iframe.remove(),delete this.iframe),delete this.target},d.browser.msie&&"6.0"===d.browser.version?c.exports=f:(g.prototype.sync=g,g.prototype.destroy=g,c.exports=g)});
\ No newline at end of file
+define("arale/iframe-shim/1.0.2/iframe-shim",["$","arale/position/1.0.0/position"],function(e,t,i){function r(e){this.target=s(e).eq(0)}function o(){}function n(e){var t={display:"none",border:"none",opacity:0,position:"absolute"},i=e.css("zIndex");return i&&i>0&&(t.zIndex=i-1),s("<iframe>",{src:"javascript:''",frameborder:0,css:t}).insertBefore(e)}var s=e("$"),a=e("arale/position/1.0.0/position"),h=-1!==(window.navigator.userAgent||"").toLowerCase().indexOf("msie 6");r.prototype.sync=function(){var e=this.target,t=this.iframe;if(!e.length)return this;var i=e.outerHeight(),r=e.outerWidth();return i&&r&&!e.is(":hidden")?(t||(t=this.iframe=n(e)),t.css({height:i,width:r}),a.pin(t[0],e[0]),t.show()):t&&t.hide(),this},r.prototype.destroy=function(){this.iframe&&(this.iframe.remove(),delete this.iframe),delete this.target},h?i.exports=r:(o.prototype.sync=function(){return this},o.prototype.destroy=o,i.exports=o)});
diff --git a/package.json b/package.json
index 7134552..f75b7bd 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "family": "arale",
   "name": "iframe-shim",
-  "version": "1.0.1",
+  "version": "1.0.2",
   "keywords": ["utility", "ie6", "shim", "dom"],
   "homepage": "http://aralejs.org/iframe-shim/",
   "description": "工具类，在 IE6 下生成 iframe 遮挡 select 和 object。此组件对开发者透明，开发者无需再判断浏览器版本。",