lazyload.js#L160 Without observers `destroy()` will error
Author: kuan1Created Feb 26, 2021Updated Feb 26, 2021
https://github.com/tuupola/lazyload/blob/d3ad81c12332a0f950c6c703ff975b60350405a4/lazyload.js#L160
Source: tuupola/lazyload
https://github.com/tuupola/lazyload/blob/d3ad81c12332a0f950c6c703ff975b60350405a4/lazyload.js#L160
Source: tuupola/lazyload