In recent years, Google has been working on developing libraries and templates for programming web components and making them freely available as part of the “Polymer Projects”. The import keyword is assigned to the rel attribute of the link element. Maybe it is just a that Web Components is still a very young thing, or maybe I … That is why we are using the  tag. Click Assign as Org Default. When a user clicks a contact, the component sends an event to the parent, which sends a new contact object to the child. After the