ETag header is stripped by CloudFlare, causing "The contact you were trying to edit has changed" to show after every edit · Issue #1157 · nextcloud/contacts · GitHub
ETag header is stripped by CloudFlare, causing "The contact you were trying to edit has changed" to show after every edit · Issue #1157 · nextcloud/contacts · GitHub
Come Risolvere l'Errore 521 con Cloudflare e WordPress