From d262e1db79f871c6876f00921154fd86117167e4 Mon Sep 17 00:00:00 2001
From: Igor Randjelovic <rigor789@gmail.com>
Date: Tue, 10 Aug 2021 16:47:39 +0200
Subject: [PATCH] feat: polyfill Buffer & crypto

---
 packages/webpack5/package.json              |  2 ++
 packages/webpack5/src/configuration/base.ts | 13 +++++++++++++
 2 files changed, 15 insertions(+)

diff --git a/packages/webpack5/package.json b/packages/webpack5/package.json
index da7b13e2a..f42bd4171 100644
--- a/packages/webpack5/package.json
+++ b/packages/webpack5/package.json
@@ -22,10 +22,12 @@
 		"acorn": "^8.0.0",
 		"acorn-stage3": "^4.0.0",
 		"babel-loader": "^8.0.0",
+		"buffer": "^6.0.3",
 		"chalk": "^4.0.0",
 		"cli-highlight": "^2.0.0",
 		"commander": "^7.0.0",
 		"copy-webpack-plugin": "^9.0.0",
+		"crypto-browserify": "^3.12.0",
 		"css": "^3.0.0",
 		"css-loader": "^5.0.0",
 		"dotenv-webpack": "^7.0.0",
diff --git a/packages/webpack5/src/configuration/base.ts b/packages/webpack5/src/configuration/base.ts
index 90c7f0a6a..a0add9c70 100644
--- a/packages/webpack5/src/configuration/base.ts
+++ b/packages/webpack5/src/configuration/base.ts
@@ -2,6 +2,7 @@ import {
 	ContextExclusionPlugin,
 	DefinePlugin,
 	HotModuleReplacementPlugin,
+	ProvidePlugin,
 } from 'webpack';
 import Config from 'webpack-chain';
 import { resolve } from 'path';
@@ -363,6 +364,18 @@ export default function (config: Config, env: IWebpackEnv = _env): Config {
 		},
 	]);
 
+	// polyfill things that don't exist in the NS runtimes
+	config.plugin('ProvidePlugin|Polyfills').use(ProvidePlugin, [
+		{
+			Buffer: [require.resolve('buffer/'), 'Buffer'],
+		},
+	]);
+
+	config.resolve.set('fallback', {
+		buffer: require.resolve('buffer/'),
+		crypto: require.resolve('crypto-browserify/'),
+	});
+
 	// enable DotEnv
 	applyDotEnvPlugin(config);