Shingen Beta 4.00 crash report and Sony's Sasuke Beta 4.50 update I found a webkit crash in the latest Beta 2 Firmware and thought I would ask if it works for you guys too.
Here is the link: http://www.filldisk.com/
It tries to fill the disk of the PS4 but instead crashes after about 2 min.
NOTE: It does work on 4.50
It will not cause code execution, it is just a note cause it is the first one I have seen for 4.50.
Update: I also found that TypedArray.fill can be used to exploit and crash PS4 Firmware 4.50 Beta for those who wish to host the html5 file on xampp.