Create global defaults object

[will-e-yams]

Support global defaults object with access to the following properties:

• global TTL
• storage location ( local [default] | session )

[aghouseh]

Was just scanning the source for this exact capability; definitely would love to see this implemented. 👌

[andris9]

I extracted the TTL code into a separate project TTL that makes it possible to create custom TTL implementations. There's also a localStorage based example but you could use any backend.