Browser http/1.1 instead of http/2 - Online global Protection
Bitdefender Total Security 2020
in current browsers (Firefox, Chrome, ...) the contents of web pages are mostly* deliverd via HTTP/1.1 (browser network analysis) instead of HTTP/2. As soon as I switch off the Bitdefender "online security system", the network analysis of the browsers shows HTTP/2 again. An internet provider's staff told me that it is not their servers that are responsible, but possibly a protection tool.
*not every page