Adds `shadowRootOptions` feature

lit / lit-element

LEGACY REPO. This repository is for maintenance of the legacy LitElement library. The LitElement base class is now part of the Lit library, which is developed in the lit monorepo.

https://lit-element.polymer-project.org

BSD 3-Clause "New" or "Revised" License

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Adds `shadowRootOptions` feature #1148

Closed sorvell closed 3 years ago

sorvell commented 3 years ago

This is a slightly simpler alternative for customizing shadow root options than implementing createRenderRoot.

Reference Issue

Fixes #1147.