At the time of writing, the solution is on version 10.0.25
In standard dw9 + Swift we have this 404 result by default
In dw10 there is a website setting "404 page"
I assume the 404 page field on the website settings is a replacement for this functionality in DW9: https://doc.dynamicweb.com/get-started/introduction/other/custom-404-error-pages#2620
The page from the website settings is not being shown when a 404 result is served. The default browser 404 page is shown isntead
Is this a bug or a configuration issue ?