Problem with sample program in Async Generators and Iterators article

In Plunker, following `Open in Sandbox` link, code provided under "An example of use (shows commit authors in console):" doesn't work (because it doesn't include `fetchCommits` function).

Console shows error:

(index):9 Uncaught (in promise) ReferenceError: fetchCommits is not defined

(index):9 Uncaught (in promise) ReferenceError: fetchCommits is not defined

    at (index):9

    at (index):18

Running the code directly from the `run` link in article also doesn't work. Gives error:

holder-2.2.min.js:10 Uncaught TypeError: Cannot read property 'appendChild' of undefined

    at Object.e.run (holder-2.2.min.js:10)

    at holder-2.2.min.js:10

    at XMLDocument.h (holder-2.2.min.js:10)

Code in question:

(async () => {


  let count = 0;

  for await (const commit of fetchCommits('javascript-tutorial/en.javascript.info')) {

    console.log(commit.author.login);

    if (++count == 100) { // let's stop at 100 commits

      break;

    }

  }

})();

Öffne den Artikel Async Generators and Iterators und untersuche das Snippet „An example of use“ sowie die zugehörigen Links Open in Sandbox und run. Reproduziere die gemeldeten Fehler und aktualisiere anschließend das Beispiel oder die verlinkten Samples so, dass fetchCommits verfügbar ist und der Code ohne den Holder-Fehler ausgeführt wird.

Vom Indexierungsmodell aus dem Issue-Text verfasst.