Just curious, because I just realized it wasn\'t an actual \"x\" (annoying how long that took to figure out).
Instead of giving you fish I will give you dynamite. When working online if you need to figure out what Unicode specific character is you can use following javascript (you might also need to add .val() or .text() or [0] after selector dependent on situation):
$('yourTextselector').charCodeAt(0).toString(16) // charCodeAt is the position of character in text you selected.
Example:
"ก้้้้้้้้้้้้้้้้้้้้".charCodeAt(2).toString(16)
returns "e49"
which means that it's \u0e49
since leading zeroes get 'swallowed'.
This should help you identify other characters that look similar but are in fact different
Hope this saves you some time.