Authentication server allowlist

Setting the policy specifies which servers should be allowed for integrated authentication. Integrated authentication is only on when Brave gets an authentication challenge from a proxy or from a server in this permitted list. Leaving the policy unset means Brave tries to detect if a server is on the intranet. Only then will it respond to IWA requests. If a server is detected as internet, then Brave ignores IWA requests from it. Note: Separate multiple server names with commas. Wildcards, *, are allowed. Example value: *.example.com,example.com