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Behavoiur of "add exception" button to access insecure website ??

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  • Ultima risposta di cor-el

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For some websites the add exception button is shown (for insecure connections) while for others it's not. So, what is the behavior of the "add exception" button. How do I disable it for my website to disallow access over insecure connections. find attached images for reference

All Replies (5)

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hi, i don't see any attachments, but if your webserver sends a HSTS header, repeat visitors should no longer be able to overwrite certificate errors. https://en.wikipedia.org/wiki/HTTP_Strict_Transport_Security

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I realise you are asking about a particular website - your own - and you may be trying to research the subject, but generally an end user would not often see messages about insecure websites.

If you or others often see warnings a passibility is that your security related software is not set up well to work with Firefox. These help articles may be of use to some readers of this thread.

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philipp said

hi, i don't see any attachments, but if your webserver sends a HSTS header, repeat visitors should no longer be able to overwrite certificate errors. https://en.wikipedia.org/wiki/HTTP_Strict_Transport_Security

Hi Philip,

Thanks for the reply. I tried setting the HSTS header in the apache configuration but still it allows me to go on to site with add exception option. I want to disable this option for a website.

please find the attached images for problem reference

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If we know what your site is we can test to find out what we see as first time visitors. If you run your site address against a check site such as

You will get a report confirming you settup and a link to that report.

Is the report for this support site and clearly shows HSTS is in use.

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You can click the SEC_ERROR_UNKNOWN_ISSUER link to expand this section and see the certificate. Then you can attach the certificate text to a reply and we can inspect this certificate.