File: navigator-onLine.html

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<!doctype html>
<title>navigator.onLine in dedicated worker</title>
<pre>Log:
</pre>
<script>
var pre = document.querySelector('pre');
var worker, shared;
try { worker = new Worker('navigator-onLine.js'); } catch(e) { pre.textContent += '\nnew Worker threw: ' + e.message; }
try { shared = new SharedWorker('#', ''); } catch(e) { pre.textContent += '\nnew SharedWorker threw: ' + e.message; }
if (worker) {
  worker.onmessage = function(e) {
    pre.textContent += '\ndedicated worker: ' + e.data;
  }
}
if (shared) {
  shared.port.onmessage = function(e) {
    pre.textContent += '\nshared worker: ' + e.data;
  }
}
function update() {
  pre.textContent += '\n\n' + new Date() + '\n<script>: ' + navigator.onLine;
  if (worker) worker.postMessage(1);
  if (shared) shared.port.postMessage(1);
}
update();
ononline = onoffline = update;
</script>
<p>As you go online and offline, the log should be filled with the correct status of navigator.onLine.</p>
<p><button onclick="update()">Check navigator.onLine status</button></p>