Lit SSR DOM emulation

This package is part of the Lit Labs family of experimental packages. See the Lit Labs page for guidance on using Labs software in production.

When running in Node, Lit automatically imports and uses a set of DOM shims, and defines the customElements global. Only the minimal DOM interfaces needed to define and register components are implemented. These include a few key DOM classes and a roughly functioning CustomElementRegistry.

✅ signifies item is implemented to be functionally the same as in the browser.

Property Notes

Element

⚠️ Partial

`attributes`	✅
`shadowRoot`	⚠️ Returns `{host: this}` if `attachShadow()` was called with `{mode: 'open'}`
`setAttribute()`	✅
`removeAttribute()`	✅
`hasAttribute()`	✅
`attachShadow()`	⚠️ Returns `{host: this}`
`getAttribute()`	✅

HTMLElement ⚠️ Empty class

CustomElementRegistry

`define()`	✅
`get()`	✅

customElements Instance of CustomElementRegistry

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