diff --git a/nsfw_checker_impl.go b/nsfw_checker_impl.go
index 74e1429..6b95caa 100644
--- a/nsfw_checker_impl.go
+++ b/nsfw_checker_impl.go
@@ -27,6 +27,13 @@ var nsfwPredictor = func() *nsfw.Predictor {
 var tempFileLocks = [3]sync.Mutex{{}, {}, {}}
 
 func isImageNSFW(url string) bool {
+	defer func() {
+		if r := recover(); r != nil {
+			log.Error().Interface("err", r).Str("url", url).Msg("panic while checking nsfw")
+			return
+		}
+	}()
+
 	if is, ok := nsfwCache.Get(url); ok {
 		return is
 	}
diff --git a/render_event.go b/render_event.go
index ca310aa..78dd5f9 100644
--- a/render_event.go
+++ b/render_event.go
@@ -118,6 +118,7 @@ func renderEvent(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 	for _, url := range allUrls {
+		url = strings.Split(strings.Split(url, "?")[0], "#")[0]
 		if imageExtensionMatcher.MatchString(url) {
 			if isImageNSFW(url) {
 				log.Warn().Str("url", url).Str("event", data.nevent).Msg("detect nsfw image")