[Webkit-unassigned] [Bug 196375] Safari (still) doesn't send Lax cookies after a cross-site redirection

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=196375

--- Comment #9 from Chris Dumez <cdumez at apple.com> ---
(In reply to Chris Dumez from comment #8)
> (In reply to Chris Dumez from comment #6)
> > (In reply to Chris Dumez from comment #5)
> > > (In reply to Chris Dumez from comment #4)
> > > > (In reply to Flávio Juvenal (fjsj) from comment #3)
> > > > > Chris Dumez, I've described this issue at #188165, Alexey Proskuryakov asked
> > > > > me to "file a new bug, with complete steps to reproduce" and a live site.
> > > > > That's what I did here. Alexey also believed issue should be fixed in iOS
> > > > > 12.2 and macOS 10.14.4, but it isn't (or at least isn't in non-beta
> > > > > version). Also, check John Wilander comment 45:
> > > > > https://bugs.webkit.org/show_bug.cgi?id=188165#c45
> > > > > 
> > > > > Are you testing on Safari 12.1 (not Technology Preview)?
> > > > 
> > > > The odd thing is that the fix was apparently in CFNetwork, not
> > > > WebKit/Safari. Therefore, I would not expect different behavior with Safari
> > > > Technology Preview and System Safari from macOS 10.14.4.
> > > 
> > > Interesting, I was testing on a more recent OS build as it was working. I
> > > have confirmed that it indeed does not work as expected on macOS 10.14.4
> > > with System Safari.
> > 
> > And it works with Trunk WebKit on macOS 10.14.4. So there is definitely a
> > fix in WebKit that's needed.
> 
> I am working on bisecting which Webkit change fixed this.

Fails: r241775
Works: r241964

I am having issues with the builds in between :/

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