SOLVED
I don't understand why ma work is not working well on the server whereas it is working on the Open preview ? Thank you.
3 first on server and 3 others on Open preview :
You may need to clear the browser's cache. An easy way to do this (in Chrome) is to open the inspection tools (ctrl+shift+I) and check "Disable cache" under the Network settings. Next reload the page. After the page is reloaded you can close the inpection tools.
