Why did Chromium start throwing an https error and not loading half of the CSS?

Question

Google Chrome

Ubuntu, Chromium has become buggy - it does not open half of the sites with https, it knocks out an error:

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

In addition, on many sites CSS and scripts are stupidly not loaded, in the console it says:

Failed to load resource: net::ERR_INSECURE_RESPONSE

Failed to load resource: net::ERR_BLOCKED_BY_CLIENT

In FF everything opens normally, moreover - a week ago and in Chromium everything was ok.
Tried disabling all extensions, didn't help.
Please help, I'm very tired of this garbage.

Answer 1

It turned out to be a bug in Chromium 53
https://bugs.launchpad.net/ubuntu/+source/chromium...
https://bugs.chromium.org/p/chromium/issues/detail...
stackoverflow.com/questions /40588595/chromium-thro...
security.stackexchange.com/questions/137144/my-sit...
in 54 they will fix exactly
the fix in ubuntu in the chromium-browser package - 53.0.2785.143-0ubuntu0.14.04.1.1145
the package is already available