URL: https://www.fioapp.co/app
Browser / Version: Firefox 72.0
Operating System: Mac OS X 10.14
Tested Another Browser: Yes
Problem type: Something else
Description: Secure Connection Failed page
Steps to Reproduce:
When navigating to the site, there's an error page displayed
An error occurred during a connection to www.fioapp.co. Peer鈥檚 Certificate has been revoked.
Error code: SEC_ERROR_REVOKED_CERTIFICATE
The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
It seems like a legit error, but Chrome and Firefox don't have the same error, so I'm wondering if there's a Firefox issue here
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Browser Configuration
_From webcompat.com with 鉂わ笍_
I think that this might be the reason for the insecure connection message:

Tested with:
Browser / Version: Firefox Nightly 72.0a1 (2019-10-29)
Operating System: Windows 10 Pro
Moving to Needsdiagnosis.
and it doesn't reproduce for me on macOS.
which is interesting because https://www.ssllabs.com/ssltest/analyze.html?d=fioapp.co
is still failing
This is legitimately because the site's SSL certificate has been revoked; it is no longer considered trustworthy: https://www.ssllabs.com/ssltest/analyze.html?d=www.fioapp.co&latest
I'm not sure why Chrome is still accepting it, because they are receiving the same certificate that is supposed to be considered as revoked. That's technically an error on their part, unless I'm missing something out of the ordinary.
Fioapp will have to update their SSL certificate to a trusted one.
This site works only in browsers with SNI support.
https://www.fioapp.co/app/
And it does work for me on Chrome Canary too.
But if it reproduces on Chrome. I would say non-compat. And if they still have some rogue certificates on a server, I guess contacting them could be a solution?
But maybe @alafritz and @antsav know about it.
Thank you guys for bringing it up 馃檹
We are looking into this issue
Quick update
So far we see certificate is valid
https://www.whynopadlock.com/results/69f8421e-9ac5-4eff-a889-114b4e483171
SSL labs are selling their own certificates and having conflict of interests on giving fair analysis results.
We are still working on this and will keep posting updates.
We've reinstalled certificates, and tested on
macOS 10.15
Chrome 77
Firefox 69.0.1
Safari 13.0.2
all works
@nchevobbe @karlcow @wisniewskit please let us know if you still experiencing the bug?
@antsav, it's working fine now, thanks for the quick turn-around!
This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue at https://webcompat.com/issues/new if you are experiencing a similar problem.
Most helpful comment
We've reinstalled certificates, and tested on
macOS 10.15
Chrome 77
Firefox 69.0.1
Safari 13.0.2
all works
@nchevobbe @karlcow @wisniewskit please let us know if you still experiencing the bug?