diff --git a/public/js/icinga/events.js b/public/js/icinga/events.js
index c1bc4c223..829ede335 100644
--- a/public/js/icinga/events.js
+++ b/public/js/icinga/events.js
@@ -421,7 +421,7 @@
             var $target;
             var formerUrl;
             var remote = /^(?:[a-z]+:)\/\//;
-            if (href.match(/^(mailto|javascript):/)) {
+            if (href.match(/^(mailto|javascript|data):/)) {
                 return true;
             }