update to 0.2.5

GoogleChrome · Nov 20, 2017 · d307e9a · d307e9a
1 parent 4862e48
commit d307e9a
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Showing 3 changed files with 13 additions and 8 deletions.
diff --git a/inert-polyfill.js b/inert-polyfill.js
@@ -211,15 +211,20 @@ if (!('inert' in HTMLElement.prototype)) {
 
         // Otherwise, enumerate through adjacent elements to find the next
         // focusable element. This won't respect any custom tabIndex.
-        var walker = document.createTreeWalker(document.body, NodeFilter.SHOW_ELEMENT, {
+        var filter = /** @type {NodeFilter} */ ({
+          /**
+           * @param {Node} node
+           * @return {number}
+           */
           acceptNode: function(node) {
-            if (!node.focus || node.tabIndex < 0) {
+            if (!node || !node.focus || node.tabIndex < 0) {
               return NodeFilter.FILTER_SKIP;  // look at descendants
             }
             var contained = inertElement.contains(node);
             return contained ? NodeFilter.FILTER_REJECT : NodeFilter.FILTER_ACCEPT;
           },
         });
+        var walker = document.createTreeWalker(document.body, NodeFilter.SHOW_ELEMENT, filter);
         walker.currentNode = inertElement;
 
         var nextFunc = Math.sign(lastTabDirection) === -1 ? walker.previousNode : walker.nextNode

diff --git a/inert-polyfill.min.js b/inert-polyfill.min.js
diff --git a/package.json b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "inert-polyfill",
-  "version": "0.2.4",
+  "version": "0.2.5",
   "description": "Polyfill for the HTML inert attribute",
   "main": "inert-polyfill.min.js",
   "repository": {