Issue on preview mode with angular application

We have several websites using the tag manager that can’t access the preview mode.

Websites with a url of type: are working well

Websites with a url of type: mysite.come/#/foo are not

So I believe it has something to do with the # routing of angular but I’m wondering if there is something to do for that? How the preview mode is loaded?

We are running on the last 3.X version