preview on element with unknown tagName (like <my-comp>) has broken size.

[3cp]

This is a problem with aurelia app, where you can put ref="dndElement" on a custom element like <my-comp>.

Since custom element tagName is unknown to HTML standard, it got default display: inline style with width/height 0 (most likely if your comp has non-inline elements inside).

Need to add new preview drawer to deal with unknown tagName, instead of duplicating element's size, it needs to duplicate all child elements' size.

[3cp]

closed by v0.4.6