code comments in preview mode not working well

[Inbydev]

I wrote this in the <textarea>:

html {
    font-size: 16px; /* por defecto son 16 píxeles */
}

header {
    font-size: 20px;
    width: 2rem;
}

and in the preview mode, its sees this:

if you can see, the code comment aren't working well, because its sees just the slash but not the asterisk.
This happen because this part of the preview__mode.js code:

htmlTexto = htmlTexto.replace(/\*(.+?)\*/g, '<i>$1</i>');

its replacing asterisks with HTML italic tags, including code snippets. However, I don't know how to exclude it from this replacement.