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Re:Instant Web Application by imaginenore on Saturday January 02, 2016 @08:28AM (#10826127)
WebSQL is not supported by IE nor FF, and is limited by 50 MB.

IndexedDB is limited by same 50MB, 5MB on mobile, and is only partially supported by IE, Safari and iOS.

Re:Instant Web Application by bahmutov on Sunday January 03, 2016 @12:36AM (#10829651)
That's why I recommend using PouchDB to work with whatever API is available. Storage limits are harder to work around, but if your HTML snapshot weights more than 50MB (or even 1MB!) that it is a problem by itself.