loadURL( '../chipper/js/browser/load-unbuilt-strings.js' );

  // Queue all of the preloads to be loaded.
  preloads.forEach( preload => loadURL( preload ) );

  const targetSource = esbuild ? '../chipper/dist/dev-server-runnable/molecule-shapes-basics.js' : '../chipper/dist/js/molecule-shapes-basics/js/molecule-shapes-basics-main.js';

  // Module loading in compilation-free (development) mode will be kicked off once strings are loaded.
  // This is done in load-unbuilt-strings.js
  window.phet.chipper.loa