As Mr. Alex Rousskov suggested, the problem was the regex itself. He provided
me a modified regex (more simple) and now the filter is working.
My regex: ((?=.*\biphone\b)|(?=.*\bprod\b)).*\.facebook\.com(\:|\d|)
Alex's regex: \b(iphone|prod)\b.*\.facebook\.com
Using https://regex101.com/ bot
I was asked to block Facebook access from 8:00am to 3:00pm for almost all users
but them are using **alternative Facebook URLs** to access the social network
anyway. This is consuming a lot of our low bandwidth and we can't even work. I
decided to design a **regular expression (regex) to parse t
