## Description Use the `chrome.dom` API to access special DOM APIs for Extensions


## Availability Chrome 88+ browser.\* since Chrome 148


## Methods ### openOrClosedShadowRoot() ```typescript browser.dom.openOrClosedShadowRoot(   element: HTMLElement, ): object ``` Gets the open shadow root or the closed shadow root hosted by the specified element. If the element doesn't attach the shadow root, it will return null. #### Parameters - element HTMLElement #### Returns - object See