diff --git a/karma.conf.js b/karma.conf.js
index 4d699599cb..41ddbdf249 100644
--- a/karma.conf.js
+++ b/karma.conf.js
@@ -199,12 +199,25 @@ module.exports = function (config) {
 
                     'matrix-react-sdk': path.resolve('test/skinned-sdk.js'),
                     'sinon': 'sinon/pkg/sinon.js',
+
+                    // To make webpack happy
+                    // Related: https://github.com/request/request/issues/1529
+                    // (there's no mock available for fs, so we fake a mock by using
+                    // an in-memory version of fs)
+                    "fs": "memfs",
                 },
                 modules: [
                     path.resolve('./test'),
                     "node_modules"
                 ],
             },
+            node: {
+                // Because webpack is made of fail
+                // https://github.com/request/request/issues/1529
+                // Note: 'mock' is the new 'empty'
+                net: 'mock',
+                tls: 'mock'
+            },
             devtool: 'inline-source-map',
             externals: {
                 // Don't try to bundle electron: leave it as a commonjs dependency