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Data protection error on visiting websites with no valid certificate

  • Hello folks,
    i've been using Opera for quite a while now. Im running a Synology NAS with no certificate on it. I cant get one from Lets Encrypt, cuz i get an error. But the Opera Problem is, that i cant access the DynDNS website anymore because Opera wont let me. It says "the connection is not private" - what is true, but i still want access. I'm used to click something like "i know the risk" and can access after that. But i dont find anything like that. Only a "More explanation" dialog with no more buttons to hit.
    Any help there or possibilities to enter the "unsave" website?

    Best regards
    Alex

  • Goto the URL opera://about and take note of the install location. Then, close Opera.

    Open a command prompt and run this command:

    "C:\Program Files\Opera\launcher.exe" --ignore-certificate-errors
    

    (adjust the path to your launcher.exe)

    Then try things.

    If that doesn't work, try https://peter.sh/experiments/chromium-command-line-switches/#unsafely-treat-insecure-origin-as-secure, which might be a better option anyway. You can then modify the command in Opera's shortcut to always pass that command-line switch to Opera's launcher.exe.

    Or, on the error page, type thisisunsafe as mentioned at https://superuser.com/a/1519667/6488. Don't know if that still works though.

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