Matomo JS Tracker send piwik.php request with empty idsite - how to avoid?

Support & Bugs
1

1) Matomo Tag Manager container with enabled bundled JavaScript tracker

2) A html page has the following Matomo components:

<head>
…….
<script type="text/javascript">
    var _mtm = _mtm || [];
    _mtm.push({'mtm.startTime': (new Date().getTime()), 'event': 'mtm.Start'});
    var d=document, g=d.createElement('script'), s=d.getElementsByTagName('script')[0];
    g.type='text/javascript'; g.async=true; g.defer=true; g.src='https://matomo.asi.asia/js/container_d2amnenK.js'; s.parentNode.insertBefore(g,s);
  </script>
…….
</head>
<body>
…….
<script type="text/javascript">
    var _paq = window._paq || [];
    _paq.push(['trackPageView']);
  </script>
…….
<body>

3) Matomo fire:
https://matomo.asi.asia/piwik.php?action_name=ONLINE%20RESERVATION%20SYSTEM&idsite=&rec=1&r=383665&h=10…

Unfortunately Matomo fire the trackPageView or other events without a number for idsite.

A little later, Matomo triggers the correct event with the idsite, which comes from the page view event of the Matomo tag itself.

4) Temporary fix: We fire delayed the _paq.push([‘trackPageView’]) then all is good.

Question: What is the simplest way in Webbrowsers JavaScript to verify and confirm that Matomo Tagmanager and all other Matomo components fully initialized & operational?

2

Hi,

What is wrong with doing the _paq.push(['trackPageView']); also with Tag Manager?
At the moment it is executed before Tag Manager loads and sets an idsite

3

Hi Lukas and thank you for your reply.

Your answer bring me back to my original question ->

Question: What is the simplest way in Webbrowsers JavaScript to verify and confirm that Matomo Tagmanager and all other Matomo components fully initialized & operational?

4

Since we are a small JavaScript that is executed in the browser and we do not know whether Matomo nor Tracker are active, these commands below are regularly executed in a scheduled loop, looking that return variables have content, which we then set as an assumption that the tracker (including idSite) set up correctly and ready for use.

_paq.push([ function() { LoopVisitor_id = this.getVisitorId(); console.log(LoopVisitor_id); }]);
_paq.push([ function() { LoopSite_id = this.getSiteId(); console.log(LoopSite_id); }]);

Since I am not a fan of any scheduled loops for this kind of mechanics, I am happy to read other ways or solutions.