Fix accidental population of the disk cache with partial content

Since the disk cache does not support partial content, we should not
try to store it in the cache altogether.

Done-with: Jocelyn Turcotte
Reviewed-by: Markus Goetz
Reviewed-by: Peter Hartmann

1 files changed, 7 insertions, 0 deletions

diff --git a/src/network/access/qnetworkreplyimpl.cpp b/src/network/access/qnetworkreplyimpl.cpp
index 343f344..894df79 100644
--- a/src/network/access/qnetworkreplyimpl.cpp
+++ b/src/network/access/qnetworkreplyimpl.cpp
@@ -505,6 +505,13 @@ void QNetworkReplyImplPrivate::initCacheSaveDevice()
 {
     Q_Q(QNetworkReplyImpl);
 
+    // The disk cache does not support partial content, so don't even try to
+    // save any such content into the cache.
+    if (q->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt() == 206) {
+        cacheEnabled = false;
+        return;
+    }
+
     // save the meta data
     QNetworkCacheMetaData metaData;
     metaData.setUrl(url);