diff --git a/addons/website/static/src/js/website.mobile.js b/addons/website/static/src/js/website.mobile.js
index 4acf2d78db8..59c2328e09b 100644
--- a/addons/website/static/src/js/website.mobile.js
+++ b/addons/website/static/src/js/website.mobile.js
@@ -17,6 +17,9 @@
             'hidden.bs.modal': 'destroy'
         },
         start: function () {
+            if (!window.location.origin) { // fix for ie9
+                window.location.origin = window.location.protocol + "//" + window.location.hostname + (window.location.port ? ':' + window.location.port: '') + '/';
+            }
             document.getElementById("mobile-viewport").src = window.location.origin + window.location.pathname + "#mobile-preview";
             this.$el.modal();
         },