Opening details page from a list

I have a page (products.html) with a list of products (framework7 media list).
When I click on an item in the list I update a session variable with the unique ID and open a details page (product.html via a route). On the details page I have an API call with loads the specific product data.
This works fine BUT, if I click back to the products listing and pick a different product, the details page doesn’t update to show the new information (it shows the product I initially picked).
The session variable is being changed (according to Chrome dev tools) but I need to force a reload or similar.
How should I do this?