fix: update condition to check for "_expired.json" suffix in renderPage function

main.go

@@ -65,7 +65,7 @@ func renderPage(w http.ResponseWriter, req *http.Request) {
 	outputDir := filepath.Join(webDir, provider)
 	serveFile := filepath.Join(webDir, req.URL.Path)
 	suffix := ""
-	if strings.HasSuffix(serveFile, "/by_date.html") {
+	if strings.HasSuffix(serveFile, "_expired.json") {
 		suffix = "_expired"
 	}