I can’t reproduce. Can you check if you have downloaded correctly the blacklist?
Have you got any proxy or httpd personalization?
You can also try to reinstall nethserver-lightsquid and nethserver-squid
Confirmed. I get the same error when modifying proxy. I must have been looking on a wrong server…
I think the error does no harm and a fix is more or less cosmetic and main focus is on cockpit now.
Because there are no proxy rules, the array is empty and that throws the error.
I added a check and the error seems to not occur anymore but I didn’t test much and don’t know if that change has other negative impacts.
I edited /usr/share/nethesis/NethServer/Module/Proxy/Rules/Modify.php: