Fix insertBefore for IE10.

In `insertBefore(node, undefined)`, `undefined` is not treated as `null` causing a runtime error.
googlearchive · Sep 11, 2013 · be345ce · be345ce
1 parent 79b2ee8
commit be345ce
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/ShadowRenderer.js b/src/ShadowRenderer.js
@@ -52,7 +52,7 @@
   function insertBefore(parentNodeWrapper, newChildWrapper, refChildWrapper) {
     var parentNode = unwrap(parentNodeWrapper);
     var newChild = unwrap(newChildWrapper);
-    var refChild = refChildWrapper && unwrap(refChildWrapper);
+    var refChild = refChildWrapper ? unwrap(refChildWrapper) : null;
 
     remove(newChildWrapper);
     updateWrapperUpAndSideways(newChildWrapper);