const data = JSON.parse(document.getElementById('flarum-json-payload').textContent);
            document.getElementById('flarum-loading').style.display = 'none';

            try {
                flarum.core.app.load(data);
                flarum.core.app.bootExtensions(flarum.extensions);
                flarum.core.app.boot();
            } catch (e) {
                var error = document.getElementById('flarum-loading-error');
                error.innerHTML += document.getElementById('flarum-content').textContent;
                error.style.display = 'block';
                throw e;
            }