Can't go back when on an item's page

## What Happened
When I go to an item's page from the main store page, I cannot go back. In some situations, like opening the main store from a link and going to an item page, the back button is disabled as if there isn't a previous page I was on.

## Expected Behavior
When I finish checking out an item, I can go back

## Steps to Reproduce
1. Go to the main store page
2. Open an item page, in my case I went to the seasonal pins
3. Try to go back

## Platform Information
elementary OS 8 with Zen
Android with Firefox