CustomRouteEnhancer does not work for preview

[ampaze]

Q	A
Sulu Version	2.5.9

Actual Behavior

I can use a CustomRouteEnhancer like so

    App\Routing\CustomRouteEnhancer:
        tags:
            - { name: dynamic_router_route_enhancer, priority: 10 }

and for example overwrite the view-template for certain pages.
This works fine when opening a page normally, but not in the preview panel in admin.

Expected Behavior

I expect preview and website to show the same content.

Steps to Reproduce

You could use a CustomRouteEnhancer to change the view template for a specific route and then compare preview and website.

Possible Solutions

I tried to understand what the preview is doing, but it is not something that is easily done...