I was trying to grab a taxonomy term through a Views Contextual filter in Drupal, but it wasn’t working because the term contained an ampersand. (& character)
Turns out you need to urlencode any special characters (such as ampersands) twice.
So the following term:
Should be sent like this
25 is the percent sign. 26 is the actual characters you want to send to the contextual filters, in my case an ampersand.