Remove popup for same session page loads using a cookie

set_cookie_for_same_session_page_loads.js

//TAKEN FROM 1693 site

<script>
//Function for creating cookies
function setCookie(cname, cvalue) {
	const maxAge = 86400
	document.cookie = cname + "=" + cvalue + ";Max-Age=" + maxAge + ";path=/";
}

//Function for reading cookies
function getCookie(cname) {
  let name = cname + "=";
  let ca = document.cookie.split(';');
  for(let i = 0; i < ca.length; i++) {
    let c = ca[i];
    while (c.charAt(0) == ' ') {
      c = c.substring(1);
    }
    if (c.indexOf(name) == 0) {
      return c.substring(name.length, c.length);
    }
  }
  return "";
}

//Set the expiry cookie when modal is closed
jQuery('#popupModalWrapper #popupModalClose').on('click', function() {
	setCookie('sameSessionPSC', true);
});

//Behavior for showing the modal
if ( getCookie('sameSessionPSC') != 'true' ) {
	jQuery('#launchModal').click();
}
</script>

//PHP/HTML
<button id = "launchModal" class = "d-none" type="button" data-bs-toggle="modal" data-bs-target="#popupModalWrapper">
  Launch Modal
</button>
<div id="popupModalWrapper" class="modal fade" tabindex="-1" aria-hidden="true">
  <div class="modal-dialog modal-dialog-centered modal-lg">
    <div class="modal-content pt-5 pb-3 pb-lg-5 px-3 px-lg-5">
		<button type="button" id = "popupModalClose" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
      <h3><?php the_field('popup_header', 'options'); ?></h3>
      <div class="modal-body p-0">
		  <div class = "wysiwyg">
			  <?php the_field('popup_content', 'options'); ?>
		  </div>        
      </div>
	<?php
	$link = get_field('popup_button', 'options');
	if( $link ): 
    	$link_url = $link['url'];
    	$link_title = $link['title'];
    	$link_target = $link['target'] ? ['target'] : '_self';
    ?>

	<a class = "button text-center" href = "<?php echo esc_url( $link_url ); ?>" target="<?php echo esc_attr( $link_target ); ?>"><button role = "button" class = "btn yellow"><?php echo esc_html( $link_title ); ?></button></a>
	<?php endif; ?>
    </div>
  </div>
</div>