Make sure event.path is an array

Can be a NodeList on older Chromes
Polymer · Mar 8, 2016 · 2dfdd7b · 2dfdd7b
1 parent 8066919
commit 2dfdd7b
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diff --git a/src/lib/dom-api-event.html b/src/lib/dom-api-event.html
@@ -42,7 +42,11 @@
       },
 
       get path() {
-        return this.event.path;
+        var path = this.event.path;
+        if (!Array.isArray(path)) {
+          path = Array.prototype.slice.call(path);
+        }
+        return path;
       }
 
     };

diff --git a/test/unit/polymer-dom.js b/test/unit/polymer-dom.js
@@ -552,6 +552,10 @@ suite('Polymer.dom', function() {
       assert.equal(path[2], re);
       assert.equal(path[4], rere);
       assert.equal(path[6], testElement);
+      // event.path *should* be an array
+      assert.isArray(path);
+      assert.isFunction(path.indexOf);
+      assert(path.indexOf(testElement) > -1);
     });
 
     rere.addEventListener('test-event', function(e) {