This is a demo page displaying IndexedDB and how to store files in it. If supported, this image below is loaded from IndexedDB through an objectURL.
IndexedDB storing and retrieving files. Raw Put the received blob into IndexedDB . Convert Blob image to ArrayBuffer before saving in indexedDB. reader.
Chrome Dev has landed support for Blob on IndexedDB. You can also fetch images and files as Blob via XMLHttpRequest. Storing a Blob on IndexedDB.