Thread:Extension talk:Maps/ display points does not accept external URLs with equal-sign (=) in it/reply (3)

If you are trying to link to the wiki itself, I suggest not using the full URL. Just use a  instead.

BTW, the  Tag does not work at all for me with Maps 3.0.1

It is here. https://semantic-mediawiki.org/wiki/Maps_examples/Google_Maps_basic_map

Can you be more specific?