From 1e80512ca768eebc519793f6228f2ef8407a4f51 Mon Sep 17 00:00:00 2001
From: Jeremy Zhang <jkzhang@uw.edu>
Date: Mon, 23 Jul 2018 02:43:46 +0000
Subject: [PATCH] Alert when changes may not been saved

---
 webapp/titanembeds/static/js/usercss.js | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/webapp/titanembeds/static/js/usercss.js b/webapp/titanembeds/static/js/usercss.js
index 15cbd40..5ec18db 100644
--- a/webapp/titanembeds/static/js/usercss.js
+++ b/webapp/titanembeds/static/js/usercss.js
@@ -1,5 +1,11 @@
 /*global $, ace, Materialize, newCSS, CSS_ID, ADMIN*/
 (function () {
+    $(window).bind('beforeunload', function(){
+        if ($("#live_preview_warning").is(":visible")) {
+            return true;
+        }
+    });
+    
     if($("#css_editor").length != 0) {
         var editor = ace.edit("css_editor");
     }