Hi, I recently started getting ERR_EMPTY_RESPONSE when accessing https://pvoutput.org via any browser.
Tried everything and found that Bitdefender AV Free was causing this.
When I disable Bitdefender or add pvoutput.org to the exlusion list, it works again.
PS forums.pvoutput.org always kept working on that same PC.
When I disable Bitdefender it also works, showing a certificate
CN = R3
O = Let’s Encrypt
C = US