An error appears when switching from Montage page to Console page. about zoneminder HOT 5 CLOSED

In montage.js there is code in "window.onbeforeunload = function(e) {" that stops the monitors.
Why is this code not used?
Were there any problems?

I realized there is a problem with the confirmation pop-up window.

from zoneminder.

Why not leave the function like this: ?

window.onbeforeunload = function(e) {
  console.log('unload');
  //event.preventDefault();
  for (let i = 0, length = monitorData.length; i < length; i++) {
    monitors[i].kill();
  }
};

from zoneminder.

Or here's a more correct code:

document.onvisibilitychange = () => {
  if (document.visibilityState === "hidden") {
    for (let i = 0, length = monitorData.length; i < length; i++) {
      monitors[i].kill();
    }
  }
};

from zoneminder.

It is code that I was trying out. When the browser is overloaded, trying to navigate away takes forever. So this function is supposed to stop the streams so that the browser can actually get around to navigating away.

from zoneminder.

I highly doubt that any message from videostore has anything to do with navigating away from the montage view. Normally those messages are caused by changes in timestamps back in time, although our current code should not allow that.

from zoneminder.