Question: A few days ago, Chrome started redirecting all of my vHosts in Wampserver to https. Everything was working fine until a couple days ago, then one day I logged on to work on my site and Chrome said that the site couldn't be reached, even though I used the same URL i always did in the past. Wamp is running as well as Apache and MySQL and none of those services have any errors in the error log.

I have already tried removing the domain(I use a fake .dev extension for my local sites) with `chrome://net-internals/#hsts` but that didn't do anything. I also tried installing SSL to see if Chrome would detect it as a secure connection... nothing. I even tried reinstalling Wamp completely(even though the vHosts work fine in other browsers) and nothing changed.

The only thing that works in Chrome is accessing the sites via `http://localhost/site`. The redirect to HTTPS happens for all of my Apache vHosts. I've googled and googled and can't find anything that actually fixes the problem.

Answer: 
I can't improve the answer of @benedikt, as it is correct. There are good temporary fixes: * [typing "badidea" on the warning page](https://stackoverflow.com/a/47756943/7372952), this might not work if you have SSL set up (hacked together) locally. It bypasses the warning, but my local SSL isn't setup correctly and shows another local site.
* [narayon](https://stackoverflow.com/users/870949/narayon) also suggests a link to a chrome forum, which I haven't tried.

My workaround was to update all my ".dev" development TLDs to ".d3v"
Still short enough to type quickly, descriptive, and probably future-proof.
I too use the .dev extension and will change to some other domain in the future but for my existing .dev sites, when the privacy error shows up, click anywhere on the screen and type 'badidea' and chrome will redirect you to the site. It works!