URI containing non alphanum char ignored

[ak4t0sh]

moodle-filter_codepen/filter.php

Line 118 in 3d17ba5

$regex = '((https?://)?)(codepen.io\/)([a-zA-Z0-9]+)(\/pen\/)([a-zA-Z0-9]+)';

Current regex does not support codepen username or penid which contains non alphanum characters
Example : https://codepen.io/v_Bauer/pen/zYrBoJa

[ak4t0sh]

Trying codepen signup page it seems codepen converting all non alphanum char to "-" except "_".
Fix should be easy to do

[ak4t0sh]

Fixed in 3.4.1