It was just yesterday that CoolStar’s Electra jailbreak tool for iOS 11.0-11.1.2 got updated to beta 8, but many users reported bugs and using it – predominantly with Safari. Fortunately, Electra beta 8-2 launched on Friday with a fix for these issues, among other things.
Just like the LiberiOS jailbreak tool that got released last year, Electra utilizes Ian Beer’s open-source tfp0 exploit. Furthermore, it doesn’t install Cydia, as Saurik has yet to update it for iOS 11 devices.