exporting to disk

[frumbert]

I'm looking for a way to iterate all my objects and store them to disk (json/bson). It's simple enough to iterate

let result = {};
        localforage.iterate(function(value,key) {
            result[key] = value;
        }).catch(function(err) {
            console.trace(err);
            return undefined;
        });
        
    console.dir(result); // yields -> keys and values
    console.dir(JSON.stringify(result)); // yields empty object -> {}

but most of those values are complex/nested objects containing potentially-large Blobs/ArrayBuffers/strings/arrays/objects etc