From 27a619246ffdc57090c2fcabb30991f0de52b939 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=B7=B4=E9=87=8C=E5=88=87=E7=BD=97?=
 <ydfzgyj@baliqieluo.com>
Date: Tue, 28 Nov 2017 16:32:58 +0800
Subject: [PATCH] Add `btoa` back to domstubs.js

---
 examples/node/domstubs.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/examples/node/domstubs.js b/examples/node/domstubs.js
index fcd54c8ea..2efa7c0ac 100644
--- a/examples/node/domstubs.js
+++ b/examples/node/domstubs.js
@@ -197,6 +197,10 @@ DOMElementSerializer.prototype = {
   },
 };
 
+function btoa (chars) {
+  return Buffer.from(chars, 'binary').toString('base64');
+}
+
 const document = {
   childNodes : [],
 
@@ -241,6 +245,7 @@ Image.prototype = {
   }
 }
 
+exports.btoa = btoa;
 exports.document = document;
 exports.Image = Image;