If I go to the URL above and click in the field named "Conditions:" and then press a key such as CTRL, I get the following error in Google Chrome:
Uncaught TypeError: Cannot read property 'syntaxOk' of null
the error is cause in the line
if ( el.syntaxOk ) {
of the JS which appears inside of a <script type="text/javascript"> tag in a page such as this:
https://pt.wikipedia.org/wiki/Especial:AbuseFilter/history/105/item/1122
I think it can be fixed by first checking if is different of null and only then checking for el.syntaxOk.
Version: unspecified
Severity: normal
URL: https://pt.wikipedia.org/wiki/Especial:AbuseFilter/history/105/item/1122?uselang=en