Creating tmp files and not clearing them

[Sar777]

Hello! thanks for this library, but I found a bug(?) If I pass uri files that are already in the cache, this action creates a copy of the files and when I close the screen it does not delete these copies.... As a result every opening = new file. You need to either add a check that the uri refers to a file already, or add a cleanup of the files created

[nt1r]

I have the same problem. Cache directory keeps growing when these temp file increases.