We're migrating a custom drag and drop functionality from the classic UI to the touch UI. It involves drag and drop of custom mimetypes (in this case books) on a custom component in the page. Dragging works fine, but on dropping nothing happens. No error in the console and also not in the logs.
This is the droptarget section in editconfig of the component on the page:
Sorry, I think i may not have been fully clear. The question is about dragging custom 'asset' types from the contentfinder/siderail on a custom component. For sure that won't work on the we retail site since those components will not accept the mimetype we configured on our assets.