Question

I want the following function to be called every x seconds, so I don’t have to refresh my page.

var rq = new XMLHttpRequest();
rq.open('GET', "SAME DOMAIN ADDRESS", true);
rq.onreadystatechange = function() {
    if(rq.readyState === 4) {
        if(rq.status === 200) {
      clearTimeout(xmlHttpTimeout); 
window.location.href = "Tracker.html"; // if internet connection found, redirect.
        } else {
        }
    }
};
rq.send(""); 
var xmlHttpTimeout=setTimeout(ajaxTimeout,5000);
function ajaxTimeout(){
   rq.abort();
// IF no internet connection found, call this whole javascript function/code AGAIN in 5 seconds! to check for internet connection
}

Basically, I want to check for internet connection without having to refresh my whole page – and if there is, then redirect to Tracker.html

Answer 1

Check if navigator.onLine is true or false.