[kickdaddy]

For standard Safari (not technology preview) 17.0 on Ventura "Swap Processes on Cross-Site Window Open" is already enabled (and labeled Stable) for me. I did not enable it so it's possible Apple already enabled this and their description of how to enable etc. is out of date.

Edit: The below comment is correct, I was looking at a similarly named item "Swap Processes on Cross-Site Navigation" - it appears this is not enabled by default right now.

[t-sauer]

I also checked on my iPhone which I just upgraded to 17.1 and the flag is present and already enabled there as well.

Edit: Seems like I got confused by the other very similar feature flag as well.

[fh9302]

Also enabled by default for me on macOS 14.1.

Edit: It appears I confused it with a similarly named flag. It doesn't appear to be enabled on macOS yet by default.

[cedws]

They disclosed this vulnerability today but it appears the information on the vuln scare site is outdated. Bit sloppy.

[fh9302]

I think users here, including myself, got confused because there is a feature flag that has a similar name.

"Swap Processes on Cross-Site Navigation" is enabled by default, but this paper recommends "Swap Processes on Cross-Site Window Open".