Certificate expired error when downloading from download.processing.org

Maybe somehow related to Certificate expired in Windows

I get following error:

Connecting to download.processing.org (download.processing.org)||:443... connected.
ERROR: cannot verify download.processing.org's certificate, issued by ‘CN=COMODO RSA Domain Validation Secure Server CA,O=COMODO CA Limited,L=Salford,ST=Greater Manchester,C=GB’:
  Issued certificate has expired.


wget https://download.processing.org/processing-3.5.4-linux64.tgz

My chrome on linux says certificate is OK

According to https://www.ssllabs.com/ssltest/analyze.html?d=download.processing.org, this is a problem with download.processing.org: some of the certificates in the certification chain it provides have expired. Testing in browser shows that the issuer has issued a new certificate since (which the browser has in its extended bundle and uses instead of the one the server provides) – so that server’s maintainer needs to update the corresponding certificates in the chain.

Please report this problem to that server’s maintainer.

In the meantime, as a workaround, you can disable certificate checking for that download with wget --no-check-certificate.