Server preview is not working

Google Tag Manager Server Container
1

Hey!
Suddenly the server preview is not working anymore.
Any suggestions how I can solve that?
Thank you very much!

PS: I am using the “custom loader”. It has added a “load” to the URL. Does I have to change the server_url in the Google Tag now? Or somewhere else? In the App?

2

No. it’s only for js load optimization.

What error do you see? what is your container identifier?

3

now it is working again without changing anything…
but thank you very much!