utils/dom/getshadowroots

Returns every shadow root the given node renders in, innermost first.

For code that has to act on all the shadow boundaries above a node – attaching listeners, injecting styles – rather than only the nearest one. Empty for a node in the light DOM, and one entry per boundary for a node inside nested trees. Works for open and closed roots alike.

Derived from the tree the node sits in, not from whether that tree is in a document: a node inside a shadow root reports that root even while its host is detached, because attachShadow() makes the shadow tree – and its root – real right away. Callers that only care about the roots a node is currently rendered in should check Node#isConnected themselves.

Parameters

node: Node

The node to collect the hosting shadow roots of.

Returns

Array<ShadowRoot>