diff --git a/README.md b/README.md
index 5fc57cb..6560fcd 100644
--- a/README.md
+++ b/README.md
@@ -96,3 +96,5 @@ sh build.sh
 25. 2016-3-20 增加字体同步的拉取和推送，增加自动更新同步版本.
 
 26. 2016-3-22 增加字形旋转吸附，调整配色.
+
+27. 2016-4-18 更新新lib库，优化错误提示体验.
diff --git a/src/fonteditor/controller/actions.js b/src/fonteditor/controller/actions.js
index 28d18a5..e7ff203 100644
--- a/src/fonteditor/controller/actions.js
+++ b/src/fonteditor/controller/actions.js
@@ -50,6 +50,7 @@ define(
         // 延迟同步函数
         var fontDelaySync = lang.debounce(function (options) {
             program.loading.show(i18n.lang.msg_syncing, 4000);
+
             program.sync.addTask(options).then(function (data) {
                 if (options.newProject && data && data.newData) {
                     actions['new']({
@@ -120,20 +121,12 @@ define(
             },
 
             'export': function (e) {
-                if (!e.target.getAttribute('download')) {
-                    e.preventDefault();
-                }
-            },
-
-            'export-file': function (e) {
                 if (program.ttfManager.get()) {
                     var target = $(e.target);
                     program.exporter.export(program.ttfManager.get(), {
                         type: target.attr('data-type'),
-                        target: target,
-                        originEvent: e,
-                        error: function () {
-                            e.preventDefault();
+                        error: function (ev) {
+                            program.fire('font-error', ev);
                         }
                     });
                 }
@@ -310,6 +303,12 @@ define(
                 if (program.ttfManager.get()) {
                     var result = program.ttfManager.optimize();
                     if (true !== result) {
+                        if (result.repeat) {
+                            program.fire('font-error', {
+                                number: 10200,
+                                data: result.repeat
+                            });
+                        }
                         alert(result.message);
                     }
                 }
diff --git a/src/fonteditor/controller/default.js b/src/fonteditor/controller/default.js
index a9148ee..0217c3c 100644
--- a/src/fonteditor/controller/default.js
+++ b/src/fonteditor/controller/default.js
@@ -12,6 +12,24 @@ define(
         var actions = require('./actions');
         var program;
 
+        /**
+         * 通知错误信息
+         *
+         * @param  {Object} options 参数
+         * @param  {number} options.number 错误号
+         * @param  {Object} options.data 错误数据
+         */
+        function notifyError(options) {
+            // 重复的代码点
+            if (options.number === 10200 && options.data) {
+                var glyfList = Array.isArray(options.data) ? options.data : [options.data];
+                var pageSize = program.setting.get('editor').viewer.pageSize;
+                var page = Math.ceil(glyfList[0] / pageSize);
+                showTTF(program.ttfManager.get(), page, glyfList);
+            }
+        }
+
+
         /**
          * 获取ttf的编辑选项
          *
@@ -602,6 +620,9 @@ define(
                         program.previewer.load(ttf, e.keyCode === 114 ? 'ttf' : 'woff');
                     }
                 }
+            })
+            .on('font-error', function (e) {
+                notifyError(e);
             });
         }
 
diff --git a/src/fonteditor/dialog/glyf-download.js b/src/fonteditor/dialog/glyf-download.js
index eb74e85..1ca1b93 100644
--- a/src/fonteditor/dialog/glyf-download.js
+++ b/src/fonteditor/dialog/glyf-download.js
@@ -5,12 +5,13 @@
 
 define(
     function (require) {
+        var pixelRatio = require('common/getPixelRatio');
         var i18n = require('../i18n/i18n');
         var glyf2svgfile = require('../widget/util/glyf2svgfile');
+        var download = require('../widget/util/download');
         var svg2base64 = require('fonteditor-core/ttf/svg2base64');
         var bytes2base64 = require('fonteditor-core/ttf/util/bytes2base64');
         var colorpicker = require('./colorpicker');
-        var pixelRatio = require('common/getPixelRatio');
 
         function getSvg(setting) {
             var opt = {
@@ -55,19 +56,17 @@ define(
                 $('#glyf-download-color').on('change', onChange);
                 $('#glyf-download-size').on('change', onChange);
                 colorpicker.show('#glyf-download-color');
-                $('#glyf-download-svg').on('mousedown', $.proxy(function (e) {
+                $('#glyf-download-svg').on('click', $.proxy(function (e) {
                     var svgText = getSvg(this.setting);
                     var target = $(e.target);
-                    target.attr('download', (this.setting.glyf.name || 'svg')+ '.svg');
-                    target.attr('href', svg2base64(svgText));
+                    download((this.setting.glyf.name || 'svg') + '.svg', svg2base64(svgText));
                 }, this));
 
-                $('#glyf-download-png').on('mousedown', $.proxy(function (e) {
+                $('#glyf-download-png').on('click', $.proxy(function (e) {
                     var canvas = $('#glyf-download-preview canvas').get(0);
                     var imgData = canvas.toDataURL();
                     var target = $(e.target);
-                    target.attr('download', (this.setting.glyf.name || 'png')+ '.png');
-                    target.attr('href', imgData);
+                    download((this.setting.glyf.name || 'png') + '.png', imgData);
                 }, this));
 
                 $('#glyf-download-name').html(setting.glyf.name);
@@ -77,8 +76,8 @@ define(
             onDispose: function () {
                 $('#glyf-download-color').off('change');
                 $('#glyf-download-size').off('change');
-                $('#glyf-download-svg').off('mousedown');
-                $('#glyf-download-png').off('mousedown');
+                $('#glyf-download-svg').off('click');
+                $('#glyf-download-png').off('click');
                 this.setting = null;
             }
         });
diff --git a/src/fonteditor/main.js b/src/fonteditor/main.js
index c1baef4..7ae443b 100644
--- a/src/fonteditor/main.js
+++ b/src/fonteditor/main.js
@@ -71,12 +71,6 @@ define(
                 }
             });
 
-            $('#export-btn').on('mouseup', actions['export-file']);
-            $('#export-btn-woff').on('mouseup', actions['export-file']);
-            $('#export-btn-svg').on('mouseup', actions['export-file']);
-            $('#export-btn-eot').on('mouseup', actions['export-file']);
-            $('#export-btn-zip').on('mouseup', actions['export-file']);
-
             document.getElementById('font-import').addEventListener('change', onUpFile);
         }
 
diff --git a/src/fonteditor/widget/TTFManager.js b/src/fonteditor/widget/TTFManager.js
index d12a0f9..f7e175a 100644
--- a/src/fonteditor/widget/TTFManager.js
+++ b/src/fonteditor/widget/TTFManager.js
@@ -445,6 +445,7 @@ define(
             }
 
             return {
+                repeat: result.repeat,
                 message: message
             };
         };
diff --git a/src/fonteditor/widget/exporter.js b/src/fonteditor/widget/exporter.js
index 3fa4c12..3c4ffd6 100644
--- a/src/fonteditor/widget/exporter.js
+++ b/src/fonteditor/widget/exporter.js
@@ -11,6 +11,7 @@ define(
         var ttf2icon = require('fonteditor-core/ttf/ttf2icon');
         var config = require('fonteditor-core/ttf/data/default');
         var exportRender = require('../template/export-render');
+        var download = require('./util/download');
         var JSZip = require('JSZip');
 
         /**
@@ -106,16 +107,12 @@ define(
                             + base64Str;
                     }
 
-                    var target = $(options.target);
-                    target.attr('download', fileName + '.' + options.type);
-
-                    target.attr('href', base64Str);
+                    download(fileName + '.' + options.type, base64Str);
                     if (options.success) {
                         options.success(base64Str);
                     }
                 }
                 catch (e) {
-                    $(options.target).removeAttr('download');
                     if (options.error) {
                         options.error(e);
                     }
@@ -123,8 +120,6 @@ define(
                     throw e;
                 }
             }
-
-            return options.target;
         }
 
 
diff --git a/src/fonteditor/widget/previewer.js b/src/fonteditor/widget/previewer.js
index ed9293a..7956aa2 100644
--- a/src/fonteditor/widget/previewer.js
+++ b/src/fonteditor/widget/previewer.js
@@ -10,7 +10,7 @@ define(
         var resolvettf = require('./util/resolvettf');
         var ttf2icon = require('fonteditor-core/ttf/ttf2icon');
         var font = require('fonteditor-core/ttf/font');
-
+        var program = require('./program');
         var previewRender = require('../template/preview-render'); // 模板渲染函数
         var extend = require('common/lang').extend;
         var isIE = !!window.ActiveXObject || 'ActiveXObject' in window;
@@ -28,7 +28,14 @@ define(
             };
 
             ttf = resolvettf(ttf);
-            var fontData = font.create(ttf).toBase64(options);
+            try {
+                var fontData = font.create(ttf).toBase64(options);
+            }
+            catch(e) {
+                program.fire('font-error', e);
+                throw e;
+            }
+
             var data = extend(
                 {
                     fontData: fontData,
diff --git a/src/fonteditor/widget/sync.js b/src/fonteditor/widget/sync.js
index 5e8dbe7..5c77017 100644
--- a/src/fonteditor/widget/sync.js
+++ b/src/fonteditor/widget/sync.js
@@ -10,7 +10,7 @@ define(
         var Resolver = require('common/promise');
         var string = require('common/string');
         var project = require('./project');
-
+        var program = require('./program');
         var resolvettf = require('./util/resolvettf');
         var font = require('fonteditor-core/ttf/font');
         var ttf2woff = require('fonteditor-core/ttf/ttf2woff');
@@ -154,6 +154,7 @@ define(
                     });
                 }
                 catch (e) {
+                    program.fire('font-error', e);
                     alert(e.message);
                     throw e;
                 }
diff --git a/src/fonteditor/widget/util/download.js b/src/fonteditor/widget/util/download.js
new file mode 100644
index 0000000..70329cd
--- /dev/null
+++ b/src/fonteditor/widget/util/download.js
@@ -0,0 +1,41 @@
+/**
+ * @file chrome下载
+ * 由于浏览器限制，需要注意调用的时候需要在一次交互内，例如`click`等
+ *
+ * @author mengke01(kekee000@gmail.com)
+ */
+
+
+define(function (require) {
+
+    /**
+     * chrome下载
+     *
+     * @param  {string} fileName  文件名
+     * @param  {string} base64Str base64字符串
+     */
+    function download(fileName, base64Str) {
+        var a = document.createElement('a');
+        a.download = fileName;
+        a.href = base64Str;
+        a.addEventListener('click', function () {
+            a.remove();
+        });
+        document.body.appendChild(a);
+        if (a.click) {
+            a.click();
+        }
+        else {
+        　　var event = document.createEvent('MouseEvents');
+        　　event.initMouseEvent('click',
+                true, true, document.defaultView,
+                0, 0, 0, 0, 0,
+                false, false, false, false,
+                0, null
+            );
+            a.dispatchEvent(event);
+        }
+    }
+
+    return download;
+});