Non-Authorization FreeMarker page in alfresco share

Non-Authorization FreeMarker page in alfresco share

i have create a new page in alfresco share but the page cannot displayed
without login! how can i make this page enabled without login.
my file in "/alfresco/templates/blog/demo/custom-viewer.ftl".
and this file contains "custom-viewer.ftl":
<#include "include/alfresco-template.ftl" />
<#import "import/alfresco-layout.ftl" as layout />
<@templateHeader />
<@templateBody>
<@markup id="alf-hd">
<div id="alf-hd">
<@region id="header" scope="global" />
<@region id="title" scope="template" />
</div>
</@>
<@markup id="bd">
<div id="bd">
<@region id="content-viewer" scope="template" />
</div>
</@>
</@>
<@templateFooter>
<@markup id="alf-ft">
<div id="alf-ft">
<@region id="footer" scope="global" />
</div>
</@>
</@>
and the file in "/alfresco/templates/blog/demo/custom-viewer.ftl".
and this file contains "custom-viewer.ftl":
<?xml version='1.0' encoding='UTF-8'?>
<page>
<title>Custom Viewer</title>
<template-instance>custom-viewer</template-instance>
<authentication>none</authentication>
</page>
the page is work correctly but i need it to work without login? any help
please?!!