Checking scroll lock, blocking Num Lock & Caps in JavaScript on page load

Question

Can I check the status of Scroll Lock, Num Lock and Caps Lock when loading a page on a web page? I found ways to check after pressing a key using JavaScript, but this is not what I ask.

Answer 1

No, you cannot get system state from javascript. You will need them to enter something, and then analyze the input. Probably not what you wanted to hear = /

Answer 2

In 2019, this became possible:

var x = event.getModifierState("ScrollLock"); 

Source: https://www.w3schools.com/jsref/event_mouse_getmodifierstate.asp