This SIMBL plugin for Safari prevents search history storage during private browsing.
Fortunately, PrivateBrowsingAssist can be a solution to this issue. It is a SIMBL plugin that fixes the aforementioned bug, allowing you to use Safari's PrivateBrowse feature without worrying about search history being stored during your private browsing session. Moreover, the plugin does not require any preference configurations and simply works when you turn on Private Browsing in Safari.
It's worth noting that a thorough testing process has been conducted for the plugin, but there's no 100% guarantee that it will operate normally on your system. Therefore, please use PrivateBrowsingAssist with caution and be aware that you are responsible for any effects it may have on your system resulting from its use. Overall, if you're looking to enhance the privacy of your browsing activities on Safari, give PrivateBrowsingAssist a try.
Version 0.0.1: N/A