message: Can just remove the script immediately.
diff: @@ -152,16 +152,15 @@ function load(module: Module<Initialized>): Module<Loading> {
  moduleBody = undefined;
  }
  beginWaitingOnEarlierScripts(mutatedModule, deps, moduleBody);
  - document.head.removeChild(script);
  };
  - script.onerror = () => {
  + script.onerror = () =>
  fail(module, new TypeError('Failed to fetch ' + module.url));
  - document.head.removeChild(script);
  - };
  -
  document.head.appendChild(script);
  + // Remove it immediately to keep the document small. Does not affect
  + // execution.
  + document.head.removeChild(script);
  return mutatedModule;
  }
  