Hello, thanks for the report. The hostname parsing was made more strict in 2018 (commit 4994960324d5353222b), so far we only received two reports about it. In git master branch there is a now a core parameter "uri_host_extra_chars" to customize this behaviour. You can easily cherry-pick this also in your 5.2 branch (you need to compile it thought): henning@linux:~/repositories/5.2> git cherry-pick -x 038158c99da96933c2