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This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.
Element.openOrCloseShadowRoot read-only property represents the shadow root hosted by the element, regardless if its
Element.attachShadow() to add a shadow root to an existing element.
var shadowroot = element.shadowRoot;
This property is not part of any specification.
|Feature||Android webview||Chrome for Android||Edge mobile||Firefox for Android||Opera Android||iOS Safari||Samsung Internet|
1. Available only to WebExtensions.