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refactor: simplify TTL parsing in script.js and add comment for session ID caching behavior

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Usman Baig
2026-02-11 14:29:44 +01:00
parent 96dc5dc83d
commit d9f07f5cde
1 changed files with 3 additions and 1 deletions
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4
public/script.js
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@@ -24,7 +24,7 @@
// * Visitor ID storage: "local" (default, cross-tab) or "session" (ephemeral per-tab) // * Visitor ID storage: "local" (default, cross-tab) or "session" (ephemeral per-tab)
const storageMode = (script.getAttribute('data-storage') || 'local').toLowerCase() === 'session' ? 'session' : 'local'; const storageMode = (script.getAttribute('data-storage') || 'local').toLowerCase() === 'session' ? 'session' : 'local';
// * When storage is "local", optional TTL in hours; after TTL the ID is regenerated (e.g. 24 = one day) // * When storage is "local", optional TTL in hours; after TTL the ID is regenerated (e.g. 24 = one day)
const ttlHours = storageMode === 'local' ? parseFloat(script.getAttribute('data-storage-ttl') || '24', 10) : 0; const ttlHours = storageMode === 'local' ? parseFloat(script.getAttribute('data-storage-ttl') || '24') : 0;
const ttlMs = ttlHours > 0 ? ttlHours * 60 * 60 * 1000 : 0; const ttlMs = ttlHours > 0 ? ttlHours * 60 * 60 * 1000 : 0;
// * Performance Monitoring (Core Web Vitals) State // * Performance Monitoring (Core Web Vitals) State
@@ -172,6 +172,8 @@
} }
} catch (e3) {} } catch (e3) {}
} }
// * Best-effort only: another tab could write before setItem; without locks perfect sync is not achievable
cachedSessionId = generateId();
localStorage.setItem(key, JSON.stringify({ id: cachedSessionId, created: Date.now() })); localStorage.setItem(key, JSON.stringify({ id: cachedSessionId, created: Date.now() }));
} catch (e) { } catch (e) {
cachedSessionId = generateId(); cachedSessionId = generateId();