Need use document.readyState

[romanlex]

I found what In your plugin DOMContentLoaded event not fired You need use document.readyState for check this Example

if(document.readyState === 'loading') {
    document.addEventListener('DOMContentLoaded',afterDOMLoaded);
} else {
    afterDOMLoaded();
}

function afterDOMLoaded(){
    //Everything that needs to happen after the DOM has initially loaded.
}

[mike-diamond]

Implemented in v. 1.1.14