Using latest Angular (development environment or production) with latest Google Chrome (Mac) I get this error if I return to the website with the browser navigation functionality, or if the website is loaded from cache.
I have tried disabling all addons and things in my Chrome browser that could cause this.
I can reproduce the issue by just going to a random live Angular website online, for example:
https://tburleson-layouts-demos.firebaseapp.com
Reproduce by first going to any website, then open the above url, click "back" and then "forward". Repeat a couple of times. The error will occur most of the time when "returning" to the website.
It is currently affecting all my live Angular websites so I am really concerned that this is a real issue not just affecting me.