diff --git a/api/article-og.ts b/api/article-og.ts
index c1d5c969..e8aee1e1 100644
--- a/api/article-og.ts
+++ b/api/article-og.ts
@@ -159,7 +159,6 @@ function generateHtml(naddr: string, meta: ArticleMetadata | null): string {
-
@@ -196,6 +195,16 @@ function generateHtml(naddr: string, meta: ArticleMetadata | null): string {
`
}
+function isCrawler(userAgent: string | undefined): boolean {
+ if (!userAgent) return false
+ const crawlers = [
+ 'bot', 'crawl', 'spider', 'slurp', 'facebook', 'twitter', 'linkedin',
+ 'whatsapp', 'telegram', 'slack', 'discord', 'preview'
+ ]
+ const ua = userAgent.toLowerCase()
+ return crawlers.some(crawler => ua.includes(crawler))
+}
+
export default async function handler(req: VercelRequest, res: VercelResponse) {
const naddr = (req.query.naddr as string | undefined)?.trim()
@@ -203,7 +212,16 @@ export default async function handler(req: VercelRequest, res: VercelResponse) {
return res.status(400).json({ error: 'Missing naddr parameter' })
}
- // Check cache
+ const userAgent = req.headers['user-agent'] as string | undefined
+
+ // If it's a regular browser (not a bot), redirect to index.html
+ // and let the SPA handle routing client-side
+ if (!isCrawler(userAgent)) {
+ res.setHeader('Location', '/')
+ return res.status(302).send('')
+ }
+
+ // Check cache for bots/crawlers
const now = Date.now()
const cached = memoryCache.get(naddr)
if (cached && cached.expires > now) {