Now we have Image Cache uses IndexedDB

[tcper]

https://github.com/tcper/indexeddb-image-cache

[tcper]

IndexedDB do have ability to save blob data, don't see any package/lib using IndexedDB as the image cache.

So I write it, and published.

Pros:

* No localStorage 5Mb size limit

* Keep the cache as long as you want

* Better for some expensive action cache (download/alogrithm calculated)