Index: frontend/node_modules/react-scripts/bin/react-scripts.js
===================================================================
--- frontend/node_modules/react-scripts/bin/react-scripts.js	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
+++ frontend/node_modules/react-scripts/bin/react-scripts.js	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
@@ -0,0 +1,58 @@
+#!/usr/bin/env node
+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+'use strict';
+
+// Makes the script crash on unhandled rejections instead of silently
+// ignoring them. In the future, promise rejections that are not handled will
+// terminate the Node.js process with a non-zero exit code.
+process.on('unhandledRejection', err => {
+  throw err;
+});
+
+const spawn = require('react-dev-utils/crossSpawn');
+const args = process.argv.slice(2);
+
+const scriptIndex = args.findIndex(
+  x => x === 'build' || x === 'eject' || x === 'start' || x === 'test'
+);
+const script = scriptIndex === -1 ? args[0] : args[scriptIndex];
+const nodeArgs = scriptIndex > 0 ? args.slice(0, scriptIndex) : [];
+
+if (['build', 'eject', 'start', 'test'].includes(script)) {
+  const result = spawn.sync(
+    process.execPath,
+    nodeArgs
+      .concat(require.resolve('../scripts/' + script))
+      .concat(args.slice(scriptIndex + 1)),
+    { stdio: 'inherit' }
+  );
+  if (result.signal) {
+    if (result.signal === 'SIGKILL') {
+      console.log(
+        'The build failed because the process exited too early. ' +
+          'This probably means the system ran out of memory or someone called ' +
+          '`kill -9` on the process.'
+      );
+    } else if (result.signal === 'SIGTERM') {
+      console.log(
+        'The build failed because the process exited too early. ' +
+          'Someone might have called `kill` or `killall`, or the system could ' +
+          'be shutting down.'
+      );
+    }
+    process.exit(1);
+  }
+  process.exit(result.status);
+} else {
+  console.log('Unknown script "' + script + '".');
+  console.log('Perhaps you need to update react-scripts?');
+  console.log(
+    'See: https://facebook.github.io/create-react-app/docs/updating-to-new-releases'
+  );
+}