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/*
Copyright (©) 2003-2025 Teus Benschop.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
document.addEventListener("DOMContentLoaded", function(e) {
notesPoll ();
window.addEventListener("unload", notesUnload);
});
function notesPoll ()
{
const url = "poll?action=alive";
fetch(url, {
method: "GET",
keepalive: true,
})
.then((response) => {
if (!response.ok) {
throw new Error(response.status);
}
return response.text();
})
.then((response) => {
if (response != "") {
if (response != location.href) {
location.href = response;
}
}
})
.catch((error) => {
console.log(error);
})
.finally(() => {
setTimeout (notesPoll, 1000);
});
}
function notesUnload ()
{
const url = "poll?action=unload";
fetch(url, {
method: "GET",
keepalive: true,
})
.then((response) => {
if (!response.ok) {
throw new Error(response.status);
}
return response.text();
})
.then((response) => {
})
.catch((error) => {
console.log(error);
})
}
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