hasRemoteResources

Whether chapter names a resource outside the book's container by an http or https URL (EPUB 3.3, 3.6): its manifest item has the remote-resources property (EPUB 3.3, D.6.4), or its markup or styles name one for an image, a video poster, a background or a font (#38). Reads the chapter's markup and styles once, and does not lay it out.

Throws