parseValue error in app-localstorage-document

[quangld]

I am not really sure this is an issue or it should be handled differently.
It happened for me when the this.storage.getItem(this.key) returns a string of 'undefined'

And this problem is caused by setStorageValue of an undefined variable.
I wonder it would be better to check if this.data is undefined before using JSON.stringify and save it

      __setStorageValue: function(key, value) {
        this.storage.setItem(this.key, JSON.stringify(this.data));
      }

and why there is a "value" parameter in the above __setStorageValue method?

[bennypowers]

is _setStorageValue supposed to be:

      __setStorageValue: function(key, value) {
        this.storage.setItem(this.key, JSON.stringify(value));
      }

?