Spotify web player songtext scraper

gistfile1.js

function updateStatus(status) {
  const options = {
    suggestedName: 'Spotify Song Texte',
    types: [
      {
        description: 'Text Files',
        accept: {
          'text/plain': ['.txt'],
        },
      },
    ],
  };
  const fileHandle = await window.showSaveFilePicker(options);

  const writable = await fileHandle.createWritable();
  // Write the contents of the file to the stream.
  await writable.write("Blubb");
  // Close the file and write the contents to disk.
  await writable.close();
}

const attrObserver2 = new MutationObserver((mutations) => {
  mutations.forEach(mu => {
    if (mu.type !== "attributes" && mu.attributeName !== "class") return;
    if (mu.target.classList.contains('arY01KDGhWNgzlAHlhpd')) updateStatus(mu.target.innerText)
  });
});


let initialSongName = document.querySelector("[data-testid='context-item-link']").innerText
document.querySelectorAll("[data-testid='fullscreen-lyric']").forEach(el => attrObserver2.observe(el, {attributes: true}));

setInterval(() => {
  //let list = document.querySelectorAll("[data-testid='fullscreen-lyric']");

  //if(list.length !== initialList.length) {
  //  initialList = list
  //  initialList.forEach(el => attrObserver2.observe(el, {attributes: true}));
  //}

  const songname = document.querySelector("[data-testid='context-item-link']").innerText
  if(songname !== initialSongName) {
    initialSongName = songname
    document.querySelectorAll("[data-testid='fullscreen-lyric']").forEach(el => attrObserver2.observe(el, {attributes: true}));
  }
}, 250)