For testing: http://referrerrerr.herokuapp.com/
- 35: doesn't respect the referrer meta tag at all (defaulting to
no-referrer-when-downgrade
behavior) - 36: respects
no-referrer
,origin
,no-referrer-when-downgrade
,unsafe-url
and defaults toorigin
- 37: respects ^^^ and 'origin-when-crossorigin'
- <= 39: ???
- 40: respects
no-referrer
,origin
,no-referrer-when-downgrade
,unsafe-url
and defaults tono-referrer
- 41: respects ^^^ and 'origin-when-crossorigin'
- 8: respects
no-referrer
andorigin
. Defaults tono-referrer