Followup to 6896, add explanation of workaround. (facebook#6905)

(cherry picked from commit ba3bfe3)
zpao · Jun 8, 2016 · 3a9b2de · 3a9b2de
1 parent 1881560
commit 3a9b2de
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/renderers/dom/shared/ReactDOMComponent.js b/src/renderers/dom/shared/ReactDOMComponent.js
@@ -617,6 +617,9 @@ ReactDOMComponent.Mixin = {
         } else if (props.is) {
           el = ownerDocument.createElement(this._currentElement.type, props.is);
         } else {
+          // Separate else branch instead of using `props.is || undefined` above becuase of a Firefox bug.
+          // See discussion in https://github.com/facebook/react/pull/6896
+          // and discussion in https://bugzilla.mozilla.org/show_bug.cgi?id=1276240
           el = ownerDocument.createElement(this._currentElement.type);
         }
       } else {