Having this issue as well after upgrading to 10.2.2 from 10.1.6. Checked for spacing on <?php, no dice.
Patch #35 unfortunately did not work.
Having this issue as well on 10.2.2 from 10.1.6. Checked for spacing on <?php but I didn't find anything.
Watching https://www.drupal.org/project/drupal/issues/3409885 🐛 Uncaught ajax.js error / exception Active as it seems more related to my specific issue.
Kristen Pol → credited maxdmayhew → .
I am also having this issue when trying to both add a new gtm container to a new site and while editing any existing containers as well. william.thomas.cox #8 🐛 Google Tag script not appearing on page Active I tried your solution but this did not work for me. Is there any way you could post your patch? I am curious to see if there is anything you did differently.
seeing this issue as well on 4.0
This worked for me! Thank you!