--- /dev/null
+var $ = require('../internals/export');
+var isObject = require('../internals/is-object');
+var onFreeze = require('../internals/internal-metadata').onFreeze;
+var FREEZING = require('../internals/freezing');
+var fails = require('../internals/fails');
+
+var nativeSeal = Object.seal;
+var FAILS_ON_PRIMITIVES = fails(function () { nativeSeal(1); });
+
+// `Object.seal` method
+// https://tc39.github.io/ecma262/#sec-object.seal
+$({ target: 'Object', stat: true, forced: FAILS_ON_PRIMITIVES, sham: !FREEZING }, {
+ seal: function seal(it) {
+ return nativeSeal && isObject(it) ? nativeSeal(onFreeze(it)) : it;
+ }
+});