Deeplink with arguments no longer working in Safari?

Deeplinks with multiple arguments no longer seem to work in Safari (Version 12.1.1 (14607.2.6.1.1).

For example … ```
http://localhost:8080/servoy-webclient/ss?s=&a=myArg&arg2=myArg2&arg3=myArg3

Can you reproduce it in a small smaple?
If so you should create a case with that sample solution attached.