Function startupChunk

src/chunk.js:53–65

(doc, fn, opt_makesBodyVisible)

 *     task scheduling strategy.
 */
export function startupChunk(doc, fn, opt_makesBodyVisible) {
  if (deactivated) {
    resolved.then(fn);
    return;
  }
  const service = chunkServiceForDoc(doc.documentElement || doc);
  service.runForStartup(fn);
  if (opt_makesBodyVisible) {
    service.runForStartup(() => {
      service.bodyIsVisible_ = true;
    });
  }
}

/**
 * Run the given function sometime in the future without blocking UI.