# shadowrootmode

A template attribute that requests an open or closed declarative shadow root.

## What is **`shadowrootmode`**?

**`shadowrootmode`** — A template attribute that requests an open or closed declarative shadow root.

Level: Freelancer · [More HTML terms at this level](https://www.ask-codey.com/glossary/subjects/html/freelancer)

Updated: September 27, 2026

Source: https://www.ask-codey.com/glossary/shadowrootmode