Shadow DOM
By default WebComp components don't use Shadow DOM because polyfill for it in some browsers may be a bit expensive.
If you know what you doing and want to use Shadow DOM, all you need to do is pass an options object with useShadow
when registering:
Modes
useShadow: 'open'
will enable Shadow DOM that is accessible from outside JavaScript.useShadow: 'closed'
will enable Shadow DOM that is unaccessible and unchangeable from JavaScript.
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