wasm: fix corrupt downloads

This would only ever put the first 16k into the buffer that gets read,
so this 16k would get repeated until the size of the download.

Task-number: QTBUG-74123
Change-Id: Ia53bedf6a8754d9fd83fd0ab62866cfa5af5cc1a
Reviewed-by: Mikhail Svetkin <mikhail.svetkin@qt.io>
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/network/access/qnetworkreplywasmimpl.cpp b/src/network/access/qnetworkreplywasmimpl.cpp
index df4e034d97..b1e9853a50 100644
--- a/src/network/access/qnetworkreplywasmimpl.cpp
+++ b/src/network/access/qnetworkreplywasmimpl.cpp
@@ -265,7 +265,7 @@ qint64 QNetworkReplyWasmImpl::readData(char *data, qint64 maxlen)
     Q_D(QNetworkReplyWasmImpl);
 
     qint64 howMuch = qMin(maxlen, (d->downloadBuffer.size() - d->downloadBufferReadPosition));
-    memcpy(data, d->downloadBuffer.constData(), howMuch);
+    memcpy(data, d->downloadBuffer.constData() + d->downloadBufferReadPosition, howMuch);
     d->downloadBufferReadPosition += howMuch;
 
     return howMuch;