When pi-hole blocks sites the Pi-Hole block page is not shown in Opera browser. Just the normal "this site can't be reached" error message. Using IE or Chrome the block page is shown correct. Anyone know why? Is this just an Opera bug or maybe a setting in Opera? Same issue on Opera for mobile to.
Using latest Opera stable 64bit on Windows 10. And Opera for Android on Galaxy S8
I also use Opera on Win10_64bit and the blockpage is shown.
If you see the "This site can't be reached"-site, please check if the address begins with http:// or https://, because Pi-hole returns the blockpage only on http-requests.
Another thing, but probably not relevant for your issue: Open Opera's Experimental Settings (opera://flags/?search=quic) and make sure that QUIC protocol is disabled.
thanks that explain why 
The site I tried to test block is saved as a favorite on Opera starting with https.
Why can not pi-hole just forward to the block site when its https some settings i have to apply? It does block the site successfully.
Please have a look to the discussion we had here:
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