Unrecognized content security policy directive "prefetch-src"

Hi all, I need help on this issue, Zero Trust blocked authentication api from a website. may I know what is the solution. I’ve encountered this on multiple websites and can only logged in witthout zero trust network.

prefetch-src is deprecated and not supported by any browser according to MDN

Is this something you have set or Zero Trust is setting?

Hi, thanks for your reply. No specific setting apply on Zero Trust, the issues persists even all policies are disabled. Most likely not related to browser because I’m able to logged in successfully away from Zero Trust network.