FW 2.31.193 cannot login with Safari 12.1.2

after update to firmware 2.31.193 (EX 2 Ultra) I cannot login to http://mycloudex2ultra.local/ with my Safari 12.1.2 browser. After enter credentials page show error “Login timed out. Please login again.”.
Firefox 68.0.2 work seamles. Do WD support Safari as web browser for WD MY Cloud Ex 2 Ultra?
In WD documentation is Safari supported browser, but reality is different :frowning:

Try searching the knowledge base.

My Cloud Dashboard Login Time Out Safari Browser

Answer ID 28638

Unfortunatelly Answer ID 28638 is workaround, NOT solution.
WD should fix web-based login page or Apple should fix Safari (I am not a judge to say which side is to blame), instead of giving workaround solution as use another browser then Safari :frowning: