Networking layer prevents cycles and limits the redirect chain length so creating cache cycles is difficult. For robustness the network cache should still limit the maximum redirect chain length.
Created attachment 267749 [details]
Comment on attachment 267749 [details]
View in context: https://bugs.webkit.org/attachment.cgi?id=267749&action=review
> +// Networking layer follows over 30 redirects but caching that many seems unnecessary.
This comment sounds platform-specific.