Bingo! I’ve combined both of your solutions, and tweaked it a bit. I kept push_redirect rather than push_patch as I was “returning” to index and with push_patch my index of items was not updated.
My workaround is that I actually put the Process.send_after into my mount function, because that’s where I always get back to – so if there’s any new flash message displayed, it gets cleared after 5s. Not sure it’s super robust solution, but this way I need the clear function in one place only, and it works nicely.
And I applied the css animation to nicely fade out the flash, no need for javascript, nor desirable for this simple animation, I think.
