I’m facing the problem “checking browser before accessing” is always showing with HTTP websites. With HTTPS websites, this page only display in first access.
I think this problem is related to cloudflare firewall incident in yesterday.
Umm, probably not. It’s the result of a setting for UAM, or under attack mode, https://support.cloudflare.com/hc/en-us/articles/200170076-Understanding-Cloudflare-Under-Attack-mode.