Incognito mode blocks third party cookies by default and apparently there is a bug in Safari up to iOS 12 that treats None as strict: >Versions of Safari and e

Incognito mode blocks third party cookies by default and apparently there is a bug in Safari up to iOS 12 that treats None as strict: >Versions of Safari and embedded browsers on MacOS 10.14 and all browsers on iOS 12. These versions will erroneously treat cookies marked with `SameSite=None` as if they were marked `SameSite=Strict`. This bug has been fixed on newer versions of iOS and MacOS. https://www.chromium.org/updates/same-site/incompatible-clients https://www.chromium.org/updates/same-site/incompatible-clie...