Merge pull request #14282 from island205/bugfix/collapse-transition

CollapseTransition: Fix bug when build commonjs with babel

.babelrc

@@ -19,7 +19,11 @@
         [
           "env",
           {
+            "loose": true,
             "modules": "commonjs",
+            "targets": {
+              "browsers": ["> 1%", "last 2 versions", "not ie <= 8"]
+            }
           }
         ],
       ],