Simon Willison’s Weblog

Come version 80, any cookie without a SameSite attribute will be treated as “Lax” by Chrome. This is really important to understand because put simply, it’ll very likely break a bunch of stuff. [...] The fix is easy, all it needs is for everyone responsible for maintaining any system that uses cookies that might be passed from an external origin to understand what’s going on. Can’t be that hard, right? Hello? Oh...

Troy Hunt

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