Pig Latin: code returns expected values, but tests fail. Bug?

As far as I can tell, the code that I have written for the Pig Latin challenge is working and returning the values expected for each test.

const vowels = ["a", "e", "i", "o", "u"];

function translatePigLatin(str) {
  var count = countInitialConsonants(str);
  if (startsWithVowel(str)) {
    str += "way";
  } else {
    var letters = str.split('');
    var consonants = letters.splice(0, count).join('');
    str = letters.join('') + consonants + "ay";
  }
  return str;
}

function startsWithVowel(word) {
  return vowels.includes(word[0]);
}

function countInitialConsonants(word) {
  var chars = word.split('');
  for (var i = 0; i < chars.length; i++) {
    if (vowels.indexOf(chars[i]) > -1) {
      return i;
    }
  }
  return 0;
}

translatePigLatin("glove");

Am I missing something, or is this a bug?

What do the failing tests say?

Strange. The failing tests are no longer failing after returning to the Pig Latin challenge. The tests are all passing now. Perhaps the page just needed a refresh.