1 files changed, 19 insertions, 0 deletions
diff --git a/ui/static/js/dom_helper.js b/ui/static/js/dom_helper.js
index 8a0644b..903e9a9 100644
--- a/ui/static/js/dom_helper.js
+++ b/ui/static/js/dom_helper.js
@@ -43,4 +43,23 @@ class DomHelper {
 
         return null;
     }
+
+    static hasPassiveEventListenerOption() {
+        var passiveSupported = false;
+
+        try {
+            var options = Object.defineProperty({}, "passive", {
+                get: function() {
+                    passiveSupported = true;
+                }
+            });
+
+            window.addEventListener("test", options, options);
+            window.removeEventListener("test", options, options);
+        } catch(err) {
+            passiveSupported = false;
+        }
+
+        return passiveSupported;
+    }
 }