Saved builds

const saved = { class: 'paladin', code: '1__', revision: '2' };
const preview = WarcraftForever.Talents.mount('#build-preview', {
  class: saved.class,
  build: { code: saved.code, revision: saved.revision },
  view: 'icons', // or 'tree'
  chrome: 'bare'
});
preview.ready.catch(console.error);

Icons link to the full Warcraft Forever build. The revision identifies the talent layout, independently of the JS release. Preserve it alongside the code. Your backend must validate submitted builds and enforce your application’s class and level requirements; browser validation is only the editing experience.