I will forget this if I don’t get it written down, and I’m hoping that someone else will find this useful as well. If you’re having trouble accessing http://localhost from your development machine (for instance, http://locahost:4200 when starting an Angular application), you can do the following, at least for the Edge and Chrome browsers.
Open your Edge or Chrome browser, and go to edge://net-internals/#hsts or chrome://net-internals/#hsts, as applicable. At the very bottom (at least at the time of this writing), you’ll find a section called Delete domain security policies
. Here, enter localhost
into the Domain box, then click on the Delete button. You should now be able to access localhost from http on your development machine.