fixed firefox cookie security error

scripts/policy-popup.js

@@ -6,9 +6,9 @@ function openPolicyPopup() {
 
 function agreePolicyPopup() {
     const _paq = window._paq || [];
-    _paq.push(['rememberConsentGiven']); // todo: check if this works
+    _paq.push(['rememberConsentGiven']);
     $("#policy-popup").fadeOut(1000); // Disable the div
-    document.cookie = "consentGiven=true"; // todo: check if already present? also, firefox was throwing a warning...
+    document.cookie = "consentGiven=true;SameSite=Lax"; // todo: check if already present? also, firefox was throwing a warning...
 }
 
 function getCookie(cname) {