Javascript ckeditor 3-对话框-浏览服务器-无法读取未定义的属性getSelection

我尝试将所选路径从“Browser Server”设置为“url”输入字段，如下所示

var dialog = CKEDITOR.dialog.getCurrent();
    dialog.setValueOf( 'info', 'url', url );

到目前为止，该操作仍然有效，所选路径将显示在“url”输入字段中，但当我按“确定”时，会收到以下错误消息：

ckeditor.js:415 Uncaught TypeError: Cannot read property 'getSelection' of undefined

---

config.js

CKEDITOR.on( 'dialogDefinition', function( ev ) {

var dialogName = ev.data.name; 
var dialogDefinition = ev.data.definition; 
var dialog = CKEDITOR.dialog.getCurrent();


CKEDITOR.tools.addFunction( SetUrl );

if(dialogName == 'link') { 

       dialogDefinition.onLoad = function ( ) { 
    }; 

    dialogDefinition.onShow = function () { 
        dialog = CKEDITOR.dialog.getCurrent();
        elem = dialog.getContentElement('info','anchorOptions');    
        elem.getElement().hide();
        elem = dialog.getContentElement('info','emailOptions'); 
        elem.getElement().hide();
    }; 
}

});


function SetUrl(url)
{
    var dialog = CKEDITOR.dialog.getCurrent();
    dialog.setValueOf( 'info', 'url', url );
};

---

test.html-javascript调用

parent.opener.SetUrl(filename);