Completely updated React, fixed #11, (hopefully)

goTorrentWebUI/node_modules/react-scripts/config/env.js

@@ -35,13 +35,16 @@ var dotenvFiles = [
 
 // Load environment variables from .env* files. Suppress warnings using silent
 // if this file is missing. dotenv will never modify any environment variables
-// that have already been set.
+// that have already been set.  Variable expansion is supported in .env files.
 // https://github.com/motdotla/dotenv
+// https://github.com/motdotla/dotenv-expand
 dotenvFiles.forEach(dotenvFile => {
   if (fs.existsSync(dotenvFile)) {
-    require('dotenv').config({
-      path: dotenvFile,
-    });
+    require('dotenv-expand')(
+      require('dotenv').config({
+        path: dotenvFile,
+      })
+    );
   }
 });