Hi Stefan, got the same issue with Safari clients when updating from 2.4.25-3+deb9u5 to 2.4.25-3+deb9u6. Looking forward for a security regression update :)
-- /* Mit freundlichem Gruß / With kind regards, Patrick Matthäi GNU/Linux Debian Developer Blog: http://www.linux-dev.org/ E-Mail: pmatth...@debian.org patr...@linux-dev.org */