[keycloak-user] Admin web site not working with Safari browser on OS X since 2.5.4

[Stephane Granger]

Not sure if it's a Safari bug or a Keycloak problem but since I updated to
2.5.4 I can't use Safari any more.  The web site displays but it's as if
there is a thread that refresh the page every 10 seconds making it
unusable. This behaviour was observed on 2 computers.  MacOS version
10.12.3 Safari 10.0.3