fix: allow public access for share route.

middleware.ts

@@ -17,8 +17,12 @@ export async function middleware(req: NextRequest) {
 
   // OPTIONAL: this forces users to be logged in to use the chatbot.
   // If you want to allow anonymous users, simply remove the check below.
-  if (!session && !req.url.includes('/sign-in'))
-    return NextResponse.redirect(new URL('/sign-in', req.url))
+  if (!session && !req.url.includes('/sign-in')) {
+    const redirectUrl = req.nextUrl.clone()
+    redirectUrl.pathname = '/sign-in'
+    redirectUrl.searchParams.set(`redirectedFrom`, req.nextUrl.pathname)
+    return NextResponse.redirect(redirectUrl)
+  }
 
   return res
 }
@@ -27,11 +31,12 @@ export const config = {
   matcher: [
     /*
      * Match all request paths except for the ones starting with:
+     * - share (publicly shared chats)
      * - api (API routes)
      * - _next/static (static files)
      * - _next/image (image optimization files)
      * - favicon.ico (favicon file)
      */
-    '/((?!api|_next/static|_next/image|favicon.ico).*)'
+    '/((?!share|api|_next/static|_next/image|favicon.ico).*)'
   ]
 }