--- a/connectors/ConnectorBase.py	Wed Jul 10 10:43:14 2019 +0200
+++ b/connectors/ConnectorBase.py	Wed Jul 10 11:21:13 2019 +0200
@@ -22,3 +22,4 @@
                     return blobID
                 blobID = self.AppendChunkToBlob(chunk, blobID)
                 s.update(chunk)
+        raise IOError("Data corrupted during transfer or connection lost")