From 6d55eb5974af37392355bc6d448bc91200bb91ed Mon Sep 17 00:00:00 2001
From: Jonas Kvinge <jonas@jkvinge.net>
Date: Wed, 7 Jun 2023 00:51:53 +0200
Subject: [PATCH] CollectionModel: Fix icon disk cache

---
 src/collection/collectionmodel.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/collection/collectionmodel.cpp b/src/collection/collectionmodel.cpp
index 961067ac8..136ec252b 100644
--- a/src/collection/collectionmodel.cpp
+++ b/src/collection/collectionmodel.cpp
@@ -693,6 +693,8 @@ void CollectionModel::AlbumCoverLoaded(const quint64 id, const AlbumCoverLoaderR
       QNetworkCacheMetaData disk_cache_metadata;
       disk_cache_metadata.setSaveToDisk(true);
       disk_cache_metadata.setUrl(disk_cache_key);
+      // Qt 6 now ignores any entry without headers, so add a fake header.
+      disk_cache_metadata.setRawHeaders(QNetworkCacheMetaData::RawHeaderList() << qMakePair(QByteArray(), QByteArray()));
       QIODevice *device_iconcache = sIconCache->prepare(disk_cache_metadata);
       if (device_iconcache) {
         result.image_scaled.save(device_iconcache, "XPM");