Where is this validation tooltip coming from?

Question

I'm building a site using Cake 2.3 and when filling out a form, this tooltip pops up with validation errors. I'd like to remove it, but I can't figure out where it's coming from. Does it look familiar to anyone?

I've tried removing all CSS and JS and it's still there. Could this be built into Cake?

Answer 1

This is required attribute from HTML5 inputs.

You can disabled it by set 'required' => false in Your $this->Form->input() second array params.