The bug also exists in Safari Technology Preview 12.2. I have reported it through the beta tester network. (Bug number 49793437)

Last edited by joemikeb; 04/10/19 09:40 PM. Reason: add bug report number

"All you've got to do is own up to your ignorance
honestly, and you'll find people who are eager to
fill your head with information"
--Walt Disney