This already exists - @soatok@furry.engineer’s blog already has a popup about not having an adblocker, although it is easy to dismiss. It’s probably a bad idea to block content based on not having one, as detecting ad blockers is a losing battle (as YouTube is learning).
i don’t really know what im talking about, but wouldn’t it be a bit easier in this case since the goal isn’t to evade the ad blocker? rather than try to detect the ad blocker, wouldn’t it be possible to design the pop up so that it’s easily detected by ad blockers (or annoyance blockers)?
If you’re not serving data from a popular ad server like google/doubleclick there will always be a false positive or two, especially with things like hosts-based ad blockers that are extremely rudimentary but work ~60-70% of the time.
And if you manage to serve data from doubleclick then either you’re working for them or something has gone horribly wrong. In either case just putting up a script to say “please use an ad blocker” is the least of your concerns.
Not all ad blockers remove elements from web pages, and if they acted that predictably you could detect the ad blocker by detecting whether an expected element is hidden.
I have not looked through an ad blocker’s code, but I don’t believe it is that simple.
Looking at this blogpost for a wordpress blocking plugin, it basically is just adding a bunch of css classes commonly used by ads to a div and some workarounds to support ad blockers that work by blocking files.
