RELOAD_REVALIDATING_CACHE_DATA constant
URLRequestCachePolicy
const RELOAD_REVALIDATING_CACHE_DATA
Use cache data if the origin source can validate it; otherwise, load from the origin.
NOTE: Versions earlier than macOS 15, iOS 13, watchOS 6, and tvOS 13 don’t implement this constant.
Implementation
static const RELOAD_REVALIDATING_CACHE_DATA =
URLRequestCachePolicy._internal(5, 5);