1. Module bundling added to reduce server calls as each file was taking ~440 ms to load on public server.\n2. JavaScript lib files refactored with OOP for use with module bundling.

node_modules/babel-loader/lib/transform.js

@@ -0,0 +1,42 @@
+const babel = require("@babel/core");
+const {
+  promisify
+} = require("util");
+const LoaderError = require("./Error");
+const transform = promisify(babel.transform);
+module.exports = async function (source, options) {
+  let result;
+  try {
+    result = await transform(source, options);
+  } catch (err) {
+    throw err.message && err.codeFrame ? new LoaderError(err) : err;
+  }
+  if (!result) return null;
+
+  // We don't return the full result here because some entries are not
+  // really serializable. For a full list of properties see here:
+  // https://github.com/babel/babel/blob/main/packages/babel-core/src/transformation/index.js
+  // For discussion on this topic see here:
+  // https://github.com/babel/babel-loader/pull/629
+  const {
+    ast,
+    code,
+    map,
+    metadata,
+    sourceType,
+    externalDependencies
+  } = result;
+  if (map && (!map.sourcesContent || !map.sourcesContent.length)) {
+    map.sourcesContent = [source];
+  }
+  return {
+    ast,
+    code,
+    map,
+    metadata,
+    sourceType,
+    // Convert it from a Set to an Array to make it JSON-serializable.
+    externalDependencies: Array.from(externalDependencies || [])
+  };
+};
+module.exports.version = babel.version;