Values for x-permitted-cross-domain-policies: none 27,543 master-only 1,517 all 58 none; 38 value="master-only" 16 value 14 self 9 "master-only" 7 by-content-type 7 "master-only"; 4 none, none 4 master-only; 3 'none' 3 master-only, master-only 3 'master-only'; 3 : none 2 * 2 nosniff 2 X-Permitted-Cross-Domain-Policies 2 “none” 2 max-age=31536000; includeSubDomains 1 script-src 'self' 1 accelerometer=(), camera=(), geolocation=(), gyroscope=(), magnetometer=(), microphone=(), payment=(), usb=() 1 'master-only' | 'none' 1 1 'master-only' 1 SAMEORIGIN 1 no-referrer-when-downgrade 1 no-cache, no-store, must-revalidate, pre-check=0, post-check=0, max-age=0, s-maxage=0 1 : none 1 anonymous 1 None 1 “master-only” 1 "none" 1 max-age=86400, enforce 1 same-origin 1