Open and close modal through javascript about van11y-accessible-modal-window-aria HOT 1 CLOSED

I resolve as follows:
I edited this code https://github.com/nico3333fr/van11y-accessible-modal-window-aria/blob/master/src/van11y-accessible-modal-window-aria.es6.js.
I changed the onLoad method of:
const onLoad = () => {
attach();
document.removeEventListener('DOMContentLoaded', onLoad);
}

for:
const onLoad = () => {
attach();
document.removeEventListener('DOMContentLoaded', onLoad);
let modalConfig = document.getElementById('openModal');
if (modalConfig) {
let setModal = {
backgroundEnabled: modalConfig.getAttribute('data-modal-content-id'),
modalCloseImgPath: modalConfig.getAttribute('data-modal-close-img'),
modalCloseText: modalConfig.getAttribute('data-modal-close-text'),
modalCloseTitle: modalConfig.getAttribute('data-modal-close-title'),
modalContentId: modalConfig.getAttribute('data-modal-content-id'),
modalDescribedById: modalConfig.getAttribute('data-modal-describedby-id'),
modalFocusBackId: modalConfig.getAttribute('data-focus-back'),
modalPrefixClass: modalConfig.getAttribute('data-modal-prefix-class'),
modalText: modalConfig.getAttribute('data-modal-text'),
modalTitle: modalConfig.getAttribute('data-modal-title')
};
openModal(setModal);
}
};

and include openModal:
let openModal = (setModal) => {
let body = doc.querySelector('body');

body.insertAdjacentHTML('beforeEnd', createOverlay({
    backgroundEnabled: "",
    prefixClass: setModal.modalPrefixClass,
    text: setModal.modalCloseText
}));

// insert modal
body.insertAdjacentHTML('beforeEnd', createModal(setModal));

};
If you insert an ID="openModal" with parameters the modal opens automatically:

<div id="openModal"
         data-modal-prefix-class="simple-animated-"
         data-modal-content-id="initial_modal_exec"
         data-modal-title="My automatic modal" 
         data-modal-text=""
         data-modal-close-text="Close"
         data-modal-close-title="Close"
         data-focus-back="klsadf" 
         data-modal-close-img="close.svg" 
         data-modal-describedby-id="">
        <div id="initial_modal_exec" class="hidden">
<p>Yeah, with <abbr title="Cascading Style Sheet">CSS</abbr> transforms, it is smoother.</p>
</div>
    </div>
[van11y-accessible-modal-window-aria.min_1530368048.zip](https://github.com/nico3333fr/van11y-accessible-modal-window-aria/files/3298149/van11y-accessible-modal-window-aria.min_1530368048.zip)

from van11y-accessible-modal-window-aria.