public CacheSettings() { HandlerRegister = new CacheHandlerRegister(); MustRevalidate = false; SuppressTypeMismatchExceptions = false; CacheableHttpMethods = new HashSet <HttpMethod> { HttpMethod.Get }; CacheableHttpStatusCodes = new HashSet <HttpStatusCode> { HttpStatusCode.OK, HttpStatusCode.NotModified }; DefaultVaryByHeaders = new HashSet <string> { "Accept", "Accept-Encoding" }; DefaultDurationForCacheableResults = TimeSpan.FromMinutes(15); ResponseValidator = (ctx, res) => CachingHelpers.ValidateResponse(res, ctx.CacheableHttpStatusCodes); RequestValidator = CachingHelpers.CanCacheRequest; RevalidateValidator = (ctx, res) => CachingHelpers.ShouldRevalidate(ctx.Request, res, ctx.CacheableHttpMethods); AllowStaleResultValidator = (ctx, res) => CachingHelpers.AllowStale(ctx.Request, res); DependentUris = new HashSet <Uri>(); }