| Index: ext/background.js | 
| diff --git a/ext/background.js b/ext/background.js | 
| index 55ca943f7093a4387d7e6af13bf8fa228250f3e4..f6ce8ce075bae22f0569a1cdd741ee29646ba580 100644 | 
| --- a/ext/background.js | 
| +++ b/ext/background.js | 
| @@ -35,20 +35,20 @@ | 
| }, | 
| keys: function() | 
| { | 
| -      return Object.keys(this._map).map(ext._getPage); | 
| +      return Object.keys(this._map).map(ext.getPage); | 
| }, | 
| get: function(page) | 
| { | 
| -      return this._map[page._id]; | 
| +      return this._map[page.id]; | 
| }, | 
| set: function(page, value) | 
| { | 
| -      this._map[page._id] = value; | 
| +      this._map[page.id] = value; | 
| nonEmptyPageMaps[this._id] = this; | 
| }, | 
| has: function(page) | 
| { | 
| -      return page._id in this._map; | 
| +      return page.id in this._map; | 
| }, | 
| clear: function() | 
| { | 
| @@ -57,7 +57,7 @@ | 
| }, | 
| delete: function(page) | 
| { | 
| -      this._delete(page._id); | 
| +      this._delete(page.id); | 
| } | 
| }; | 
|  | 
|  |