unction checkKeyProduct(key) {
      fetch("/credentials/keys/" + key)
        .then((response) => {
          return response.json();
        })
        .then((data) => {
          let select = document.getElementById("exam");
          select.innerHTML = "";
          data.activatableProducts.forEach((item) => {
            let option = document.createElement("option");
            option.value = item.id;
            option.text = item.name;
            select.appendChild(option);
          });
          