diff --git a/package.json b/package.json
index 891c0ba7..e473c16e 100755
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "mip",
-  "version": "1.0.82",
+  "version": "1.0.83",
   "description": "mobile instant page",
   "main": "dist/mip.js",
   "dependencies": {},
diff --git a/src/utils/fn.js b/src/utils/fn.js
index 84da9d98..169f4205 100755
--- a/src/utils/fn.js
+++ b/src/utils/fn.js
@@ -50,7 +50,7 @@ define(function (require) {
      * @return {boolean}
      */
     function isPlainObject(obj) {
-        return !!obj && Object.getPrototypeOf(obj) == Object.prototype;
+        return !!obj && 'object' === typeof obj && Object.getPrototypeOf(obj) == Object.prototype;
     }
 
     /**
diff --git a/src/viewer.js b/src/viewer.js
index 1b9cbe77..8b12304d 100755
--- a/src/viewer.js
+++ b/src/viewer.js
@@ -135,6 +135,10 @@ define(function (require) {
                 }, false);
             }
 
+            document.addEventListener('click', function (event) {
+                eventAction.execute('click', event.target, event);
+            }, false);
+
             /* istanbul ignore next */
             util.event.delegate(document, 'input', 'change', function (e) {
                 eventAction.execute('change', event.target, event);
@@ -215,7 +219,7 @@ define(function (require) {
                         lastDirect = dist/Math.abs(dist);
                         self.sendMessage('mipscroll', { 'direct': direct, 'dist': dist});
                     }
-                } 
+                }
                 else if (scrollTop === 0) {
                     self.sendMessage('mipscroll', { 'direct': 0 });
                 }