But it's offline, what's the website? Or offline doesn't mean offline?

I think in their case, offline is as in you don't need to set up a pubsub server and the client doesn't have to talk to a server for the specific pubsub functionality, not as in "use this for offline web pages/html files locally" (it may or may not work for that, I have no idea, didn't look).

Works for offline apps as well :) (you would need to download the tabsub JS ofc and not use it from my server)

It means, that you don't need an internet connection for this to work :) (so it is no rabbitmq or so which runs on a server and the browser is just the client)

You can try on the demopage when you

1. play the songs each (for them to buffer a little audio snippet)

2. open the page in a second tab

3. Disconnect from the internt

Still works :D

I'm just asking random questions now and then to get an idea of how things work in the web world. Especially those that aren't mentioned in tutorials.

Which is a good thing :) I am all in for asking questions. If someone can't answer them, it usually means they have not thought about it and are either ignorant or will learn something themselves :D

(like me for your question, as I never tried TabSub with internet disconnected. Was delighted to see it works nevertheless)

But but, you used "offline". I always thought that's the opposite of "online". Looks like it means something else in Newspeak :)

Websites can work without internet connection after the initial visit: https://developer.mozilla.org/en-US/docs/Web/Progressive_web...