MediaWiki:Common.js

/* Any JavaScript here will be loaded for all users on every page load. */
if ( mw.config.get('wgPageName') === 'Current_worldguards' ) {
  function fetch_worldguard_data() {
   fetch("https://betadynmap.puucraft.net/standalone/regions_world.json")
    .then(function(response) {
      if (response.ok) {
        return response.json()
      } else {
        throw new Error("NETWORK RESPONSE ERROR")
      };
    })
    .then(function(data) {
      var div_for_worldguard_list = document.getElementById('load_fetched_json_worldguard_data');
      var list = document.createElement('ul');

      for (var index in data) {
          var li = document.createElement('li');
          li.innerHTML = data[index];
          list.appendChild(li);
          div_for_worldguard_list.appendChild(list);
    };
    })
    .catch(function (error) {console.error("FETCH ERROR:", error)})
};

fetch_worldguard_data()
}