Grabbed dndbeyond's source code

```
~/go/bin/sourcemapper -output ddb -jsurl https://media.dndbeyond.com/character-app/static/js/main.90aa78c5.js
```

ddb_main/node_modules/@babel/runtime/helpers/interopRequireDefault.js

@@ -0,0 +1,6 @@
+function _interopRequireDefault(e) {
+  return e && e.__esModule ? e : {
+    "default": e
+  };
+}
+module.exports = _interopRequireDefault, module.exports.__esModule = true, module.exports["default"] = module.exports;