Pig Latin. Instruction is unclear? It test won't pass only one test

Tell us what’s happening:
for my understanding.

  1. if string begins with vowels(a,y,u,i,o,e) then add “way” at the end of the string.
  2. if string doesn’t being with vowels then remove first Char and add to end of the string + “ay”;
    so my code is passing passing but the “glove”? it says supposed to return “oveglay”;
    which I can’t understand.

Also how do we use regex to check for vowel? is it right place to use regex?
thanks in advance…
Your code so far

function translatePigLatin(str) {
  var vowelCheck = str.charAt(0);
 if(vowelCheck == "o" || vowelCheck == "y" || vowelCheck == "e" || vowelCheck == "a" || vowelCheck == "u"){
    return str + "way";
    }
  else {
    return str.slice(1) + vowelCheck + "ay";
  }
}

translatePigLatin("glove");

Your browser information:

Your Browser User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.186 Safari/537.36.

Link to the challenge:
https://www.freecodecamp.org/challenges/pig-latin

never mind got it. it was my poor english. Constant cluster means if first and second characters are both non-vowels.