> For example, why did Edge and possible chrome, remove support for Back via the backspace key?
Because people were triggering it by accident all the time. Firefox and Safari don't navigate back on backspace either.
Enter only auto-submits if there's a visible submit button or if there's just one input, and that behavior goes back as far as I can remember.
right now, i cannot even enable Backspace = go back on Edge. I am forced to use Edge on my work computer and i hate that this feature is gone. Not disabled, just gone.
About enter to auto submit, i've been running into this problem more often where some web frameworks just ignore the Enter key. There is a submit button, but i cannot trigger it via the enter key.
I'm surprised the person responsible for <backspace> mapping to Back navigation didn't mandate that <del> would be super awesome for Forward navigation.