How to clear SSL state in Chromium?

I have the following situation:

I have a website for which I didn’t have SSL certificate until now. An hour ago I activated Cloudflare Flexible SSL for it. My main browser is Chromium in which I have opened the site so far. I also have Google Chrome and Firefox installed.

When I open it works in all 3 browsers.
When I open it works fine in Google Chrome and Firefox (green locker shows) BUT in Chromium I get a red locker and the message:

"Your connection is not private. Attackers might be trying to steal your information from (for example, passwords, messages, or credit cards). NET::ERR_CERT_COMMON_NAME_INVALID

This server could not prove that it is; its security certificate is from This may be caused by a misconfiguration or an attacker intercepting your connection."

Which of course is wrong. Both sites are hosted on the same server, so I guess that may be part of the reason for something being cached wrongly. uses an SSL certificate too and is on Cloudflare too. The only problem seems to be the SSL cache.

I have found this info but it seems in openSUSE we don’t have this button to clear SSL state. Also I cleared:

  • Cached images and files
  • Hosted app data
  • Media licenses

and restarted the browser. I also cleared up DNS cache on my router.

But I am still getting the “Your connection is not private…”

How do I clear it, so that it works in Chromium too?

A system reboot fixed it.

Still it would be interesting to know how to do it without reboot.