The changes in 258467@main were missing the NSURLRequest bit of the SPI. When someone attempts to build trunk WebKit with the Open Source Sonoma SDK the build failures because it is lacking a property definition.
<rdar://problem/115795086>
Pull request: https://github.com/WebKit/WebKit/pull/17983
Committed 268214@main (0d5ad833f880): <https://commits.webkit.org/268214@main> Reviewed commits have been landed. Closing PR #17983 and removing active labels.