Invalid JS options

It doesn't works for me because of invalid 'options' JS file receives from php.

Js receives:
loadInvisible: 0
offset: '100'

but it works with:
loadInvisible: false
offset: 100

To fix it I've changed 2 lines in lazy.module file (56, 57) from:
'loadInvisible' => $config->get('loadInvisible'),
'offset' => $config->get('offset'),

to:
'loadInvisible' => boolval($config->get('loadInvisible')),
'offset' => intval($config->get('offset')),

I have no time to make commit so it's up to module maintainer