Hello, i noticed a problem when using a text type custom field containing a slash in its value. When i click on the filter field value i get an error page "The requested URL was not found on this server". I did the test without putting the "Load Results using Ajax" option in the module to see the error. The URL encoding however worked well since in the URL i have % 2 F % 2 B between 40 and 10 at the end. If i can't keep the slash, that's okay, I'll put a character like "-" instead in the list of values.
Best regards