Stocker les paramètres d'URL dans le local storage

<script>
function saveQueryParams() {
  const existingParams = JSON.parse(localStorage.getItem('queryParams')) || {};

  const queryString = window.location.search;

  if (queryString) {
    const newParams = {};
    const urlParams = new URLSearchParams(queryString);

    urlParams.forEach((value, key) => {
      newParams[key] = value;
    });

    const params = { ...existingParams, ...newParams };

    localStorage.setItem('queryParams', JSON.stringify(params));
  }
}

function loadQueryParams() {
  let params = {};

  if (localStorage.getItem('queryParams')) {
    params = JSON.parse(localStorage.getItem('queryParams'));
  }
  return params;
}

saveQueryParams();

loadQueryParams();
</script>