By default Adblock does not block all pop ups, but you can extend the blacklist by adding additional filters e.g. Fanboy's annoyances filter list:
On Mozilla Firefox, you can also do this by opening the menu to the right(three dots on top of each other) and checking "request desktop site". Requesting desktop is particularly useful for youtube videos of songs, because this way, you can lock your mobile device and still listen to the song, which is not possible through the youtube app.
Serving multiple websites on a single host with Docker is against the principles of Docker and micro service architecture. Sure you can do it but what is blocking you from separating it into multiple docker instances. That way, if there is a problem not all of the sites go down. By separating the hosts, you make it easier the diagnose possible problems and minimize down time.
For Safari (macOS High Sierra):
1. When on website make a right-click the URL area and select option "Settings for This Website"
2. In appeared dialog box hover the cursor to "Auto-Play"
3. In menu choose preferable option: "Allow All Auto-Play", "Stop Media with Sound", "Never Auto-Play".