CLDSRV-881: fix missing CORS headers on 403 responses#6126

tcarmet wants to merge 7 commits intodevelopment/9.2scality/cloudserver:development/9.2from

bugfix/CLDSRV-881-cors-headers-on-403-responsesscality/cloudserver:bugfix/CLDSRV-881-cors-headers-on-403-responsesCopy head branch name to clipboard