use jquery 2

src/main/resources/public/index.html

@@ -7,7 +7,7 @@
 
     <link media="all" type="text/css" rel="stylesheet" href="vendor/bootstrap/css/bootstrap.min.css">
     <link media="all" type="text/css" rel="stylesheet" href="vendor/canvasplot/canvasplot.css">
-    <script src="vendor/jquery/jquery-3.1.0.slim.min.js"></script>
+    <script src="vendor/jquery/jquery-2.2.4.min.js"></script>
     <script src="vendor/bootstrap/js/bootstrap.min.js"></script>
     <script src="vendor/d3/d3.min.js" charset="utf-8"></script>
     <script src="vendor/canvasplot/canvasplot.js" charset="utf-8"></script>