[suggestion] Error Handling Event Strategy

[CWSpear]

In the provider.js file, I see a this.defaultNotifyTarget option, which I could use to disable notifications.

Would it be possible to take that further and create a strategy for handling validation errors when they submit a form via aa-submit-form? i.e. if I don't want to use your notifications or have a one-off case where I want to do something very specific.

The default strategy could be the notifications as it is now, so functionality isn't changed, but I could override that and say, do a native popup (on a mobile device) when they try and submit the form without their email.

[johnculviner]

Nice, that sounds like a good idea to allow for better customization. I'll see if I can do that sometime otherwise feel free to send a PR!