Ensure that experimental features (which are generally off by default) are truly off in Lockdown Mode, even if a user chose to activate such a feature for local use when outside of Lockdown Mode.
<rdar://101969455>
Pull request: https://github.com/WebKit/WebKit/pull/7292
*** Bug 248914 has been marked as a duplicate of this bug. ***
Committed 257758@main (01a79e657788): <https://commits.webkit.org/257758@main> Reviewed commits have been landed. Closing PR #7292 and removing active labels.