Hello, the two links:
[[http://localhost/A-+-B][AAA]] [[http://localhost/A-+-B][BBB]] are displayed in org mode as <strikethrough>AAA </strikethrough><a>BBB>/a> meaning the first AAA + whitespaces are strike-through and normal face, and the BBB is correctly displayed as link. However, both work as links. I noticed the problem with links from Atlassian Confluence. Org mode version 9.3 (9.3-elpa) GNU Emacs 26.3 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.10) of 2019-08-29 Best Regards, Florian