cypress: Replace obsolete Cypress.Cookies.preserveOnce

cypress/e2e/finding_aid.cy.js

@@ -24,31 +24,30 @@ describe(
       })
     })
 
-
     beforeEach(() => {
-      // Preserve authentication cookies between tests
-      cy.getCookies().then((cookies) => {
-        const cookiesToPreserve = ['atom_authenticated', 'symfony'];
-        const preservePromises = [];
-
-        cookiesToPreserve.forEach((cookieName) => {
-          const cookie = cookies.find((c) => c.name === cookieName);
-          if (cookie) {
-            preservePromises.push(
-              cy.setCookie(cookie.name, cookie.value, {
-                // Add any additional options if needed
-                // For example, { domain: 'example.com' }
-              })
-            );
-          }
+      // Define an array of cookies to preserve
+      const cookiesToPreserve = ['atom_authenticated', 'symfony'];
+
+      // Retrieve all cookies
+      cy.window().then((win) => {
+        const cookies = win.document.cookie;
+
+        // Filter out cookies based on the array
+        const filteredCookies = cookies
+          .split('; ')
+          .filter((cookie) => cookiesToPreserve.includes(cookie.split('=')[0]));
+
+        // Preserve cookies using cy.setCookie()
+        filteredCookies.forEach((cookie) => {
+          const [name, value] = cookie.split('=');
+          cy.setCookie(name, value, {
+            // Add any additional options if needed
+            // For example, { domain: 'example.com' }
+          });
         });
-
-        // Wait for all setCookie promises to complete before proceeding
-        return Promise.all(preservePromises);
       });
     });
 
-
     it('Disables finding aids', () => {
       cy.visit('settings/findingAid')