Make website completely invisible to the user switching to another window or tab. May break some websites.
Did you know? Website can detect you changing or switching into another tab using of DOM API and JavaScript hackery. Sometimes, using the official Page Visibility API provided by browser, or straight up using the document's focus/blur event.
This userscript aim to prevent that from happening, preventing websites from knowing when you're switching into another tab or window, while also keeping the changes minimal and the website mostly functional.
This script could be useful for web anonymity, or... for cheating in an important online test...
I would advise you to use this when you really need to, because this script may break some important page function.
Otherwise, good luck!
~~ owowed
