[XAPID-999] fix blob endpoint

bundle.go

diff --git a/bundle.go b/bundle.go
index 7b09cd2..cf1092a 100644
--- a/bundle.go
+++ b/bundle.go
@@ -190,7 +190,7 @@
 		log.Panicf("bad url value for config %s: %s", blobUri, err)
 	}
 
-	blobUri.Path = strings.Replace(BLOBSTORE_URI, "{BLOB_ID}",blobId, 1)
+	blobUri.Path += strings.Replace(BLOBSTORE_URI, "{BLOB_ID}",blobId, 1)
 	parameters := url.Values{}
 	parameters.Add("action", "GET")
 	parameters.Add("key", blobId)