Media files cannot be selected or drag-and-dropped about rpg-ambience

[JakobKallin]

This could also be solved using IndexedDB, which is supported in Chrome, Firefox, and (reportedly) IE10. Since the URLs are only valid for the current session, there is no risk of old files lying around. If support for manually defining paths and URLs is dropped, this could make file selection and drag-and-drop possible in current browsers.

[JakobKallin]

On second thought, the fact that IndexedDB URLs are not persisted over sessions means that auto-saving adventures is not possible, unlike a solution with local file paths or filesystem:// URLs.

[JakobKallin]

It turns out that the data inside the IndexedDB is actually persisted over sessions; it's the object URLs that are cleared when the window closes. This means that auto-saving adventures is indeed possible using IndexedDB.