__esModule handling

Author: guybedford

core/loader-polyfill.js

@@ -222,7 +222,7 @@ function ModuleNamespace (baseObject/*, evaluate*/) {
     });
   }
   else { */
-    Object.getOwnPropertyNames(baseObject).forEach(extendNamespace, this);
+    Object.keys(baseObject).forEach(extendNamespace, this);
   //}
 };
 // 8.4.2

core/register-loader.js

@@ -614,6 +614,11 @@ function doEvaluate (loader, load, link, registry, state, seen) {
         module.exports,
         module
       ]);
+      // __esModule flag extension support
+      if (moduleObj.default && moduleObj.default.__esModule)
+        for (let p in moduleObj.default)
+          if (moduleObj.default.hasOwnProperty(p))
+            moduleObj[p] = moduleObj.default[p];
     }
   }