I have the same issue, I have defined defaults and get undefined instead of the default value, then I tried defining a complete schema structure, same result.

cant provide a solution for now, just confirming

quick and dirty workaround for now:

const dotProp = require('dot-prop');

const storage = new Storage({
  defaults
});

storage.getWorkaround = function (key, defaultValue) {
    let v = storage.get(key, defaultValue);
    return typeof v == "undefined" ? dotProp.get(storage._defaultValues, key, defaultValue) : v;
};

References
#88

But mainly:
sindresorhus/conf#85

quick and dirty workaround for now:

const dotProp = require('dot-prop');

const storage = new Storage({
  defaults
});

storage.getWorkaround = function (key, defaultValue) {
    let v = storage.get(key, defaultValue);
    return typeof v == "undefined" ? dotProp.get(storage._defaultValues, key, defaultValue) : v;
};

Thanks a lot, I get this solution.

Please see my comment in the original issue:

Can you open an issue on ajv and comment the link here?

Someone needs to do that.

same bug guys

As of 5.1.1 with electron 8.2.5, using the defaults key in a schema appears to work as expected but using default on an individual definition in the schema doesn't work at any level. I tried about every combination I could think of, including the workaround posted above.