Fix public page

Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>

1 files changed, 3 insertions, 0 deletions

diff --git a/js/previewplugin.js b/js/previewplugin.js
index 1e4ccd6..fa9b229 100644
--- a/js/previewplugin.js
+++ b/js/previewplugin.js
@@ -135,6 +135,9 @@ $(document).ready(function(){
 	if ($('#isPublic').val() && $('#mimetype').val() === 'application/pdf') {
 		$.urlParam = function(name){
 			var results = new RegExp('[\?&]' + name + '=([^&#]*)').exec(window.location.href);
+			if (results == null) {
+				return 0;
+			}
 			return results[1] || 0;
 		};
 		var sharingToken = $('#sharingToken').val();