Nested transclude broken
When you include using the transclude method of inserting card template, and the contents include a directive that has a transclude, things get wonky.
Here is an example codepen.
[ngTransclude:orphan] Illegal use of ngTransclude directive in the template! No parent directive that requires a transclusion found.
Can confirm when using with Angular Material's <md-button> directive.
I've forked repo and made changes to use ng-transclude instead of ng-include which fixes the scope issues - at the cost of deprecating using cardTemplate and cardTemplateString.
And you'll have to use $parent.card instead of card when referencing the element in the transcluded item.
https://github.com/VegaFactor/angular-deckgrid