"<Page> uses an invalid security certificate" but certificate looks good.

[Zurek87]

Is impossible to get response via https from mailchimp.com servers. Looks like cert problem, but in FF cert is "green".

(Firefox 62.0.3 64-bit on Arch Linux)

[inspector71]

I've just had this same issue despite only using RESTclient successfully with the eBay API less than 24 hours ago and the site cert being fine.

Turns out it was Firefox's new Strict or Custom level of Content Blocking.

@Zurek87 What Content Blocking, or addons that may be blocking something RESTclient seems to need, might you have in place? If you disable them, does it resolve the issue?

Hope this helps.

[alexbereznikov]

Hey, any updates on this? Ran into the same issue today, Firefox itself shows that the certificate is valid. Actually I can't add an exception because it is valid.



I'm using Firefox 89.0.2 x64 on Windows 10 Pro 19041.

Seems like it is somehow related to www.example.com