From 2875648ee3948405e86ccc5808179fbe6bd5be3d Mon Sep 17 00:00:00 2001
From: fiatjaf <fiatjaf@gmail.com>
Date: Thu, 24 Jul 2025 13:25:08 -0300
Subject: [PATCH] handle wot filter error.

---
 sdk/wot.go | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/sdk/wot.go b/sdk/wot.go
index e840966..ec61cb2 100644
--- a/sdk/wot.go
+++ b/sdk/wot.go
@@ -150,7 +150,15 @@ func makeWoTFilter(m chan nostr.PubKey) WotXorFilter {
 		}
 	}
 
-	xf, _ := xorfilter.Populate(shids)
+	if len(shids) == 0 {
+		return WotXorFilter{}
+	}
+
+	xf, err := xorfilter.Populate(shids)
+	if err != nil {
+		nostr.InfoLogger.Println("failed to populate filter", len(shids), err)
+		return WotXorFilter{}
+	}
 	return WotXorFilter{len(shids), *xf}
 }