Enable http2 in apache

Hello,

That should be pretty much it.

You can now use your browser to check if the resources are actually going through http2. You can do that with the browsers developer tool, then go to the networking tab and try accessing your site, there you should see the protocol that is being used.

Note that the Protocol column might not be there, so you need to enable it, just right click on any of the other columns and choose tick the Protocol from the drop down.

Let me know how it goes! Bobby

For anyone looking for a solution to this, I had the same issue and followed the steps here, thanks to the discussion here, lead me in the right direction:

sudo apt install php7.4-fpm
sudo a2enmod proxy_fcgi
sudo a2enconf php7.4-fpm
sudo a2dismod php7.4
sudo a2dismod mpm_prefork
sudo a2enmod mpm_event
sudo service apache2 restart

Then enabling the Apache module (as the OP had done):

sudo a2enmod http2
sudo service apache2 restart

Then adding this config line to your vhost configs (as the OP had done):

<VirtualHost *:443>
  Protocols h2 http/1.1
  .... 
</VirtualHost>

Source: https://helgeklein.com/blog/2018/11/enabling-http-2-in-apache-on-ubuntu-18-04/