I am designing a web app and the below code is supposed to find the most common HTML tag in a page’s source code, but it always returns ‘html’ instead of the correct tag. Why doesn’t this work as expected?

function mostCommonTag(url) {
  const response = await fetch(url);
  const html = await response.text();
  const tags = [];
  const regex = /<(w+)[^>]*>/g;
  let match;
  while ((match = regex.exec(html)) !== null) {
    tags.push(match[1]);
  }
  const mostCommon = tags.reduce((a, b) => tags.filter(v => v === a).length > tags.filter(v => v === b).length ? a : b);
  return mostCommon;
}

console.log(mostCommonTag('(link unavailable)'));

I have tried doing a lot of research on this but I’m still pretty stumped!

Any advice would be greatly appreciated!

P.S. please let me know if this is a duplicate- I had a look and couldn’t find one but this site has a vast number of questions!