How to make Web Proxy work on mikrotik RB951Ui-2HnD?

Question

Mikrotik

I ask for help, I set up a web proxy on port 8080 on my microtic, I won’t go into details, it is set up elementarily, a couple of sites that need to be blocked are registered for the test, and everything would be fine, BUT!
There is a chain=input, action=drop rule in the firewall that blocks all traffic to the input that I did not allow in the rules, this rule is below all the rules of the input chain, respectively. When this rule is turned off, the proxy works great, pages are blocked, allowed pages are opened, when the rule is turned on, no pages are opened, neither allowed nor prohibited.
By trial, it was revealed that if this blocking rule is brought to this form:
chain=input
protocol=tcp
src.port=!80 (please pay attention to the exclamation point)
dst.port=!8080
action=drop
src.addr. list (the list of addresses under which this rule falls, in my example it includes a test computer),
then the proxy starts working as it should again.
But I want all the other traffic that I did not allow to drop to the input, I create the chain=input, action-drop rule again, make it the last one and the proxy refuses to work, what to do, what to do, where to look?

Answer 1

My transfer is configured in the NAT
chain=dst-nat
protocol=tcp
Src tab. Address = IP of my test computer.
dst-port=80
action=redirect to ports 8080
this rule is below the masquerade rule