/// <summary>
/// Define valid cache control values
/// </summary>
private void ApplyCacheControl(CacheItem cacheItem, HttpResponseBase response) {
if (_maxAge > 0) {
var maxAge = new TimeSpan(0, 0, 0, _maxAge); //cacheItem.ValidUntilUtc - _clock.UtcNow;
if (maxAge.TotalMilliseconds < 0) {
maxAge = TimeSpan.FromSeconds(0);
}
response.Cache.SetCacheability(HttpCacheability.Public);
response.Cache.SetMaxAge(maxAge);
}
// an ETag is a string that uniquely identifies a specific version of a component.
// we use the cache item to detect if it's a new one
if (response.Headers.Get("ETag") == null) {
response.Cache.SetETag(cacheItem.GetHashCode().ToString(CultureInfo.InvariantCulture));
}
response.Cache.SetOmitVaryStar(true);
if (_varyQueryStringParameters != null) {
foreach (var queryStringParam in _varyQueryStringParameters) {
response.Cache.VaryByParams[queryStringParam] = true;
}
}
// different tenants with the same urls have different entries
response.Cache.VaryByHeaders["HOST"] = true;
// Set the Vary: Accept-Encoding response header.
// This instructs the proxies to cache two versions of the resource: one compressed, and one uncompressed.
// The correct version of the resource is delivered based on the client request header.
// This is a good choice for applications that are singly homed and depend on public proxies for user locality.
response.Cache.VaryByHeaders["Accept-Encoding"] = true;
// create a unique cache per browser, in case a Theme is rendered differently (e.g., mobile)
// c.f. http://msdn.microsoft.com/en-us/library/aa478965.aspx
// c.f. http://stackoverflow.com/questions/6007287/outputcache-varybyheader-user-agent-or-varybycustom-browser
response.Cache.SetVaryByCustom("browser");
// enabling this would create an entry for each different browser sub-version
// response.Cache.VaryByHeaders.UserAgent = true;
}
/// <summary>
/// Define valid cache control values
/// </summary>
private void ApplyCacheControl(CacheItem cacheItem, HttpResponseBase response) {
if (_maxAge > 0) {
var maxAge = new TimeSpan(0, 0, 0, _maxAge); //cacheItem.ValidUntilUtc - _clock.UtcNow;
if (maxAge.TotalMilliseconds < 0) {
maxAge = TimeSpan.FromSeconds(0);
}
response.Cache.SetCacheability(HttpCacheability.Public);
response.Cache.SetMaxAge(maxAge);
}
// an ETag is a string that uniquely identifies a specific version of a component.
// we use the cache item to detect if it's a new one
if (HttpRuntime.UsingIntegratedPipeline) {
if (response.Headers.Get("ETag") == null) {
response.Cache.SetETag(cacheItem.GetHashCode().ToString(CultureInfo.InvariantCulture));
}
}
response.Cache.SetOmitVaryStar(true);
if (_varyQueryStringParameters != null) {
foreach (var queryStringParam in _varyQueryStringParameters) {
response.Cache.VaryByParams[queryStringParam] = true;
}
}
foreach (var varyRequestHeader in _varyRequestHeaders) {
response.Cache.VaryByHeaders[varyRequestHeader] = true;
}
// create a unique cache per browser, in case a Theme is rendered differently (e.g., mobile)
// c.f. http://msdn.microsoft.com/en-us/library/aa478965.aspx
// c.f. http://stackoverflow.com/questions/6007287/outputcache-varybyheader-user-agent-or-varybycustom-browser
response.Cache.SetVaryByCustom("browser");
// enabling this would create an entry for each different browser sub-version
// response.Cache.VaryByHeaders.UserAgent = true;
}
/// <summary>
/// Define valid cache control values
/// </summary>
private void ApplyCacheControl(CacheItem cacheItem, HttpResponseBase response) {
if (_maxAge > 0) {
var maxAge = new TimeSpan(0, 0, 0, _maxAge); //cacheItem.ValidUntilUtc - _clock.UtcNow;
if (maxAge.TotalMilliseconds < 0) {
maxAge = TimeSpan.FromSeconds(0);
}
response.Cache.SetCacheability(HttpCacheability.Public);
response.Cache.SetMaxAge(maxAge);
}
response.Cache.VaryByParams["*"] = true;
response.DisableUserCache();
// keeping this examples for later usage
// response.DisableKernelCache();
// response.Cache.SetOmitVaryStar(true);
// an ETag is a string that uniquely identifies a specific version of a component.
// we use the cache item to detect if it's a new one
if (HttpRuntime.UsingIntegratedPipeline) {
if (response.Headers.Get("ETag") == null) {
response.Cache.SetETag(cacheItem.GetHashCode().ToString(CultureInfo.InvariantCulture));
}
}
if (_varyQueryStringParameters != null) {
foreach (var queryStringParam in _varyQueryStringParameters) {
response.Cache.VaryByParams[queryStringParam] = true;
}
}
foreach (var varyRequestHeader in _varyRequestHeaders) {
response.Cache.VaryByHeaders[varyRequestHeader] = true;
}
}
