Form Associated Custom Elements is a new platform feature to deeply integrate custom elements into Forms. It might take some work to implement all the necessary callbacks, and there is some natural synergy with [the FormData Event](https://github.com/webcomponents/polyfills/issue/172)
Form Associated Custom Elements is a new platform feature to deeply integrate custom elements into Forms.
It might take some work to implement all the necessary callbacks, and there is some natural synergy with the FormData Event