This problem is browser agnostic, it affects chrome, edge, firefox the
lot! browsing in a private window will not help unless you've allowed
private to bypass forticlient web filter.
I've also tested off our corporate network with a standalone machine on
a separate internet circuit with no firewalls on the edge and exact same
issue occurs. When FortiClient Web Filter is disabled in all scenarios
the problem disappears.
We have the same issue started last week, no changes made on our
side.EMS 6.4.8 , Forticlient 6.4.x, also tried with FortiClient 7.2.x as
a stand alone test and same issue occurs. I have a case logged with
Fortinet but no help so far.