From 9881e6de3e4966af39ec6245562dca6ac7b25eaa Mon Sep 17 00:00:00 2001
From: zadam <zadam.apps@gmail.com>
Date: Sun, 26 Mar 2023 23:09:15 +0200
Subject: [PATCH] fix hangup on highlighting empty tokens, closes #3772

---
 src/services/search/services/search.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/services/search/services/search.js b/src/services/search/services/search.js
index beb0555d1..d682af090 100644
--- a/src/services/search/services/search.js
+++ b/src/services/search/services/search.js
@@ -299,7 +299,9 @@ function highlightSearchResults(searchResults, highlightedTokens) {
     // which would make the resulting HTML string invalid.
     // { and } are used for marking <b> and </b> tag (to avoid matches on single 'b' character)
     // < and > are used for marking <small> and </small>
-    highlightedTokens = highlightedTokens.map(token => token.replace('/[<\{\}]/g', ''));
+    highlightedTokens = highlightedTokens
+        .map(token => token.replace('/[<\{\}]/g', ''))
+        .filter(token => !!token?.trim());
 
     // sort by the longest, so we first highlight the longest matches
     highlightedTokens.sort((a, b) => a.length > b.length ? -1 : 1);