Edit File: metabox.js
jQuery(document).ready(function() { jQuery('#speedycache-generate-specific-cache').on('click', function(){ let ccss_disabled = jQuery('#speedycache-disable-critical-css:checked'); if(ccss_disabled.length){ alert('Critical CSS is disabled for this post'); return; } jQuery.ajax({ 'method': 'POST', 'url': speedycache_metabox.url, 'data': { 'post_id': speedycache_metabox.post_id, 'security': speedycache_metabox.nonce, 'action': 'speedycache_generate_single_ccss', }, success: function(res){ if(!res.success){ alert(res.data.message ? res.data.message : 'Something went wrong ! Unable to intitiate Critical CSS!'); return; } alert(res.data.message); } }); }); });