dart web ui webcomponents extending off html elements in future
I do not know when/if this will happen but the WebComponent class features the following comment:
/** * Temporary property until components extend [Element]. An element can * only be associated with one host, and it is an error to use a web component * without an associated host element. */ Element get host { ... }Since it says "temporary" I guess that if your code is explicitly referring to host, some changes will be required.