If you use firefox and have set cookie to be deleted when you close firefox, server worker are nuked which cause an error to be shown in website_event_track: https://bugzilla.mozilla.org/show_bug.cgi?id=1429714 With this fix, the error is handler and shown in the console instead of as a traceback to the user. opw-2556734 closes odoo/odoo#74890 X-original-commit: 8e81db2515dbed196433f2127591384f2e23bfaa Signed-off-by: Nicolas Lempereur (nle) <nle@odoo.com>