Due to an expired certificate I am unable to install add-ons.
Log file entry:
2019-06-22 12:00:15.892 ERROR : FetchError: request to https://api.mozilla-iot.org:8443/releases failed, reason: certificate has expired
at ClientRequest. (/home/pi/mozilla-iot/gateway/node_modules/node-fetch/lib/index.js:1444:11)
Known problem ?