alert: Avoid calling jQuery('#'), it's a syntax error in jQuery 3.0 (#20019)

diff --git a/js/alert.js b/js/alert.js
index 807f23d7568e32b19ca53b4c8282bd47ee957fc8..79b15552b796b245a47729bb861ed0a200c3bd9b 100644 (file)
--- a/js/alert.js
+++ b/js/alert.js
@@ -31,7 +31,7 @@
       selector = selector && selector.replace(/.*(?=#[^\s]*$)/, '') // strip for ie7
     }
 
-    var $parent = $(selector)
+    var $parent = $(selector === '#' ? [] : selector)
 
     if (e) e.preventDefault()