No:

Assume the key is repeated for the length of the text, character by character. Note that some implementations repeat the key over characters only if they are part of the alphabet -- this is not the case here.

It's been already discussed 4 years ago: https://www.codewars.com/kata/52d1bd3694d26f8d6e0000d3/discuss#6050b777d2342a000e60697f

This kata was Auto-retired.