Test link: https://self-signed.badssl.com/
So, it says:
Your connection is not private Attackers might be trying to steal your information from self-signed.badssl.com (for example, passwords, messages, or credit cards).
NET::ERR_CERT_INVALID
self-signed.badssl.com normally uses encryption to protect your information. When Opera tried to connect to self-signed.badssl.com this time, the website sent back unusual and incorrect credentials. This may happen when an attacker is trying to pretend to be self-signed.badssl.com, or a Wi-Fi sign-in screen has interrupted the connection. Your information is still secure because Opera stopped the connection before any data was exchanged.
You cannot visit self-signed.badssl.com right now because the website sent scrambled credentials that Opera cannot process. Network errors and attacks are usually temporary, so this page will probably work later.
- Opera version: Version:92.0.4561.61 (arm64) (the latest)
- OS: MacOS
Chrome, for instance, works fine, it gets NET::ERR_CERT_AUTHORITY_INVALID error and allows to get in.
So, both browsers block websites with invalid certificate. But Chrome allows to proceed to website but Opera does not.
Question: how to make Opera work in the same way?
This setting opera://flags/?search=cert#unsafely-treat-insecure-origin-as-secure did not help.
By the way, Safari (MacOS) blocks it as well.
