Trim trailing (and leading) blanks (spaces) in all form input fields

[vorburger]

I just supported an end-user who really wanted to register (her kid) for an event on the Alf.io instance used for http://scratchday.ch, and got stuck because "it wouldn't accept the email address".

I was puzzled because it seemed like a perfectly normal email (no special characters), so I asked for a screenshot, and guesses that the problem was "just" an extra trailing space character in the email field... which indeed turned out to be the problem (participant confirmed it worked after manually removing the space).

In an ideal world, I guess it it would be cool if trailing (and leading) blanks (spaces) in all form input fields could be automatically String.trim()'d?

This may seem trivial to Alf.io users e.g. of technical conferences, but the kind of event I use Alf.io for, almost lost a kid a chance to learn https://scratch.mit.edu/ and thus have a chance to become a future Alf.io contributor in a few years! ;-)

@cbellone @syjer