From a769d8509885422b95c6f933e8088f92e0c0d6be Mon Sep 17 00:00:00 2001
From: cxam <cxam@users.noreply.github.com>
Date: Wed, 2 Aug 2017 16:09:27 +0100
Subject: [PATCH] Handle Buffer.from TypeError on pre node v4.5.x

---
 lib/utils.js | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/lib/utils.js b/lib/utils.js
index 8aff277634..b936bb35da 100644
--- a/lib/utils.js
+++ b/lib/utils.js
@@ -162,5 +162,18 @@ function asBuffer(thing) {
     return thing;
   }
 
-  return Buffer.from ? Buffer.from(thing) : new Buffer(thing);
+  if (Buffer.from) {
+    // Buffer.from fix for node versions prior to 4.5.x
+    try {
+      return Buffer.from(thing);
+    } catch (e) {
+      if (e instanceof TypeError) {
+        return new Buffer(thing);
+      } else {
+        throw e;
+      }
+    }
+  } else {
+    return new Buffer(thing);
+  }
 }