From fc83c29b09710376a9f9260a6c0d77982acc29ed Mon Sep 17 00:00:00 2001
From: Ben Newman <ben@benjamn.com>
Date: Tue, 8 May 2018 12:02:27 -0400
Subject: [PATCH] Define Buffer globally if buffer built-in module installed.

---
 index.js | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/index.js b/index.js
index 209db5ae63..bc65e30aa0 100644
--- a/index.js
+++ b/index.js
@@ -24,3 +24,18 @@ if (typeof meteorInstall === "function") {
     }
   });
 }
+
+// If Buffer is not defined globally, but the "buffer" built-in stub is
+// installed and can be imported, use it to define global.Buffer so that
+// modules like core-util-is/lib/util.js can refer to Buffer without
+// crashing application startup.
+if (typeof global.Buffer !== "function") {
+  try {
+    // Use (0, require)(...) to avoid registering a dependency on the
+    // "buffer" stub, in case it is not otherwise bundled.
+    global.Buffer = (0, require)("buffer");
+  } catch (ok) {
+    // Failure to import "buffer" is fine as long as the Buffer global
+    // variable is not used.
+  }
+}