Corresponding attribute for clonable of ShadowRootInit?

[saschanaz]

What is the issue with the DOM Standard?

#892 did not add one, is it intentional somehow or just an accidental omission? The spec does have attributes for every other member.

interface ShadowRoot : DocumentFragment {
  readonly attribute ShadowRootMode mode;
  readonly attribute boolean delegatesFocus;
  readonly attribute SlotAssignmentMode slotAssignment;
  readonly attribute Element host;
  attribute EventHandler onslotchange;
};

dictionary ShadowRootInit {
  required ShadowRootMode mode;
  boolean delegatesFocus = false;
  SlotAssignmentMode slotAssignment = "named";
  boolean clonable = false;
};

[annevk]

It seems reasonable to me to expose this.

cc @rniwa @mfreed7

[mfreed7]

It seems reasonable to me to expose this.

cc @rniwa @mfreed7

I'm not sure what the use case is, but as long as it's a readonly attribute, I'm ok adding it.

[saschanaz]

Could be used for feature detection, at least.