Hi,
Running on latest and standard DW version with swift. when deleting a product from cart it displays empty page.
Steps for Recreating the error:
1. add couple of products to the cart.
2. fill out the information and navigate to the last step
3. click on previous step button and then click on logo to goto frontpage
4. goto cart again and delete a product
https://www.screencast.com/t/6hp6wJ2h
Also if you notice the url it looks like this "/cart?CompletedOrderId=ORDER396&CompletedOrderSecret=0a16c9c72f2a401594352ed903532810"
I have seen the same behavious 9.10.14 -> latest (may be it exist on previous versions as well).
BR,
Umar