修改bug

node_modules/style-loader/dist/runtime/isOldIE.js

@@ -0,0 +1,17 @@
+"use strict";
+
+var memo;
+
+/* istanbul ignore next  */
+function isOldIE() {
+  if (typeof memo === "undefined") {
+    // Test for IE <= 9 as proposed by Browserhacks
+    // @see http://browserhacks.com/#hack-e71d8692f65334173fee715c222cb805
+    // Tests for existence of standard globals is to allow style-loader
+    // to operate correctly into non-standard environments
+    // @see https://github.com/webpack-contrib/style-loader/issues/177
+    memo = Boolean(typeof window !== "undefined" && typeof document !== "undefined" && document.all && !window.atob);
+  }
+  return memo;
+}
+module.exports = isOldIE;