diff --git a/preview_easy/controllers/preview.py b/preview_easy/controllers/preview.py
index 3e4b408a6..e811e3db4 100644
--- a/preview_easy/controllers/preview.py
+++ b/preview_easy/controllers/preview.py
@@ -15,7 +15,7 @@ _logger = logging.getLogger(__name__)
 
 
 class preview(http.Controller):
-    @http.route('/web/content/preview/<int:id>', type='http', method=['Get'], auth="public")
+    @http.route('/web/content/preview/<int:id>', type='http', method=['Get'], auth="none")
     def content_preview(self, id=None):
         ir_attach = request.env['ir.attachment'].sudo()
         attach = ir_attach.browse(id)
@@ -39,24 +39,24 @@ class preview(http.Controller):
             #         html = result.value
             #     return template.render(html=html)
             elif attach.mimetype in excel or word:
-                # 'http://view.officeapps.live.com/op/view.aspx?src=https://oa.thtzjt.com/web/content/office_preview/'
-                # office_view_url = 'http://view.officeapps.live.com/op/view.aspx?src='
-                # base_url = request.env['ir.config_parameter'].sudo().get_param('web.base.url')
-                # html = f'{office_view_url}{quote(base_url + "/web/content/office_preview/" + str(attach.id))}'
-                target_url = f'/onlyoffice/editor/{str(attach.id)}'
-                return werkzeug.utils.redirect(target_url)
-                # return werkzeug.wrappers.Response(f"""
-                # <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
-                #     "http://www.w3.org/TR/html4/loose.dtd">
-                #     <html>
-                #     <head>
-                #     <meta http-equiv="Content-Type" content="text/html; charset=gb2312">
-                #     <title></title>
-                #     </head>
-                #     <body onLoad="parent.location='{html}'">
-                #     </body>
-                #     </html>
-                # """, status=200, headers=[('Content-Type', 'text/html'), ('charset', 'utf-8')])
+                'http://view.officeapps.live.com/op/view.aspx?src=https://oa.thtzjt.com/web/content/office_preview/'
+                office_view_url = 'http://view.officeapps.live.com/op/view.aspx?src='
+                base_url = request.env['ir.config_parameter'].sudo().get_param('web.base.url')
+                html = f'{office_view_url}{quote(base_url + "/web/content/office_preview/" + str(attach.id))}'
+                # target_url = f'/onlyoffice/editor/{str(attach.id)}'
+                # return werkzeug.utils.redirect(target_url)
+                return werkzeug.wrappers.Response(f"""
+                <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
+                    "http://www.w3.org/TR/html4/loose.dtd">
+                    <html>
+                    <head>
+                    <meta http-equiv="Content-Type" content="text/html; charset=gb2312">
+                    <title></title>
+                    </head>
+                    <body onLoad="parent.location='{html}'">
+                    </body>
+                    </html>
+                """, status=200, headers=[('Content-Type', 'text/html'), ('charset', 'utf-8')])
             else:
                 return werkzeug.wrappers.Response('This format is not currently supported', status=200, headers=[('Content-Type', 'text/html'),('charset','utf-8')])