OSIS-3518 Custom close alert to keep it in DOM (default removes it)
OSIS-3518 Custom close alert to keep it in DOM (default removes it)

uclouvain/osis,uclouvain/osis,uclouvain/OSIS-Louvain,uclouvain/osis,uclouvain/OSIS-Louvain,uclouvain/OSIS-Louvain,uclouvain/osis