need support attachShadow({mode: 'closed'})

[rainke]

The customElement option only support open mode, sometimes we need closed mode;
And I cannot get this in script if customElement is true.

[itswillta]

And I cannot get this in script if customElement is true.

This should be another issue 🤔.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale]

This issue has been closed as it was previously marked as stale and saw no subsequent activity.