How to disable the use of SSL?

Question

Google Chrome

Hello.
There was a following problem. There is a site example.com with an SSL certificate. and there is a subdomain for it for development dev.example.com to which the certificate does not apply.
If I reset the browser cache (chrome) then I can safely go to dev.example.com. but as soon as I go to example.com, the browser tries to immediately transfer the subdomain to https, and since there is no script, nothing works, is it possible to somehow configure this behavior in the browser?

Answer 1

1. More correct option: make a certificate on dev.example.xyz
2. Less correct option: disable HSTS for subdomains on example.xyz

Answer 2

Most likely there is a 301 redirect in .htaccess (from http to https), you need to find something like this and delete it:

RewriteCond %{HTTPS} =on
    RewriteRule ^ - [env=proto:https]
    RewriteCond %{HTTPS} !=on
    RewriteRule ^ - [env=proto:http]
  
  RewriteCond %{HTTPS} !=on
    RewriteRule ^(.*)$ https://%{HTTP_HOST}/$1 [R=301,L]