Why is debug console not loading for me?

Matomo Tag Manager provides you the ability to debug your website to test before pushing any changes to live. After enabling the preview, you need to specify the URL to debug and it will open the URL and load a debug console on the entered URL. Example:

If the Tag Manager debug console does not load for you, go through the following steps to troubleshoot.

  1. Check if you are debugging the correct site and the URL you have entered contains the Matomo Tag Manager JS code.
  2. Check if the cookies are allowed. Matomo Tag Manager uses cookies to enable debug view.
  3. Check if pop-ups are allowed. When you enter a URL to debug, Matomo will try to open the URL in a new tab and set a cookie. Please ensure that no pop-ups are blocked.
  4. Clear your browser cache or do a hard refresh (Ctrl + F5 / Cmd + Shift + R). Sometimes, the debug console fails to load due to outdated cached files.

If the debug console still fails to load, please try accessing the site from the URL provided by the debug tool in a private/incognito window. This may help resolve the issue.