[REQUIRED] Describe your environment

• Operating System version: MacOS 10.15.6 (19G2021)
• Browser version: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.0 Safari/605.1.15
• Firebase SDK version: 8.0.2
• Firebase Product: auth, firestore

[REQUIRED] Describe the problem

When calling enablePersistence in Safari it just locks and blocks and never returns.

The weird thing is if I do it 3-4 times it seems to break out of whatever was locking it up.

Then it works fine and works like my normal app does under Chrome.

However, if I clear all the browser data again, and do it a second time, it will lock up again.

Steps to reproduce:

Probably just clear your cache, and try to enablePerisistence with synchronizeTabs=true