Improve script performance
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				@ -4,6 +4,9 @@ window.onload = function () {
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    Math.random().toString(36).substring(2, 15);
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  function sendUpdate() {
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    try {
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      if (document.hidden) {
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        return;
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      }
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      var xhr = new XMLHttpRequest();
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      xhr.open(
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        "POST",
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@ -21,8 +24,8 @@ window.onload = function () {
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            window.performance.timing.navigationStart,
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        })
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      );
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    } catch {}
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    } catch { }
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  }
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  setInterval(sendUpdate, Number("{{heartbeat_frequency}}"));
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  setInterval(sendUpdate, parseInt("{{heartbeat_frequency}}"));
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  sendUpdate();
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};
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