For those of you still experiencing an issue, I posted this on the
Wunderground apicommunity thread:
So, the certificate isn't verifiable due to authority trust. Easily
identifiable with wget or curl. It would appear that the certificate
authority ("DigiCert SHA2 Secure Server CA") is not trusted with at least
some of the Linux distributions. It is trusted in current MacOs.
-----
denny ~ $ wget
https://rtupdate.wunderground.com/weatherstation/updateweatherstation.php
--2020-01-31 08:28:41--
https://rtupdate.wunderground.com/weatherstation/updateweatherstation.php
Resolving rtupdate.wunderground.com... 169.60.133.170, 169.47.111.58,
52.116.188.166
Connecting to rtupdate.wunderground.com|169.60.133.170|:443... connected.
ERROR: cannot verify rtupdate.wunderground.com's certificate, issued by
'CN=DigiCert SHA2 Secure Server CA,O=DigiCert Inc,C=US':
Unable to locally verify the issuer's authority.
To connect to rtupdate.wunderground.com insecurely, use
`--no-check-certificate'.
denny ~ $ curl
https://rtupdate.wunderground.com/weatherstation/updateweatherstation.php
curl: (60) SSL certificate problem: unable to get local issuer certificate
More details here: https://curl.haxx.se/docs/sslcerts.html
curl failed to verify the legitimacy of the server and therefore could not
establish a secure connection to it. To learn more about this situation and
how to fix it, please visit the web page mentioned above.
denny ~ $
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