diff --git a/preview_easy/controllers/preview.py b/preview_easy/controllers/preview.py
index 0346f180e..992c1bf12 100644
--- a/preview_easy/controllers/preview.py
+++ b/preview_easy/controllers/preview.py
@@ -9,9 +9,13 @@ from odoo.http import request, content_disposition
 from jinja2 import Environment, PackageLoader
 import mammoth
 
+import logging
+
+_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="user")
     def content_preview(self, id=None):
         ir_attach = request.env['ir.attachment'].sudo()
         attach = ir_attach.browse(id)
@@ -40,7 +44,7 @@ class preview(http.Controller):
                 # 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 self.redirect(target_url)
+                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">