Can app block deep linking work with draft themes or theme IDs?

Should app block deep linking work with draft themes or by using a theme id?

I can get the deep link to work if I use “current” in the url but using a theme id does not seem to work. I believe this

WORKING:

https://

**NOT WORKING:**

```markup
https://

Is there some other way to deep link to a theme by id?

So i seem to have found a partial solution.

If i add a url parameter “previewPath” it seems to work.

This is find for cart page but if i want to install an app block to a product page this url parameter requires a product slug as well.

Example:

Works fine for cart page:

previewPath=%2Fcart

Doesnt work on a product page:

previewPath=%2Fproducts

Works on a product page but not possible as i don’t know a product to preview with in a random store.

previewPath=%2Fproducts%2Fpizza

Is there some value i can include that indicates first product found or something?