lass="modal-footer">
                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">
                  <span class="lang-field lang-fa">بستن</span>
                  <span class="lang-field lang-en">Close</span> 
                  <span class="lang-field lang-cn">关闭</span> 
                </button>
                <button type="button" class="btn btn-primary" onclick="copyToClipboard(cfIPv4.join(`\n`))">
                  <span class="lang-field lang-fa">کپی</span>
     