|
protected static getStaleResponse ( |
||
| $cacheEntry | ||
| return | null | Psr\Http\Message\ResponseInterface | |
protected static function getStaleResponse(CacheEntry $cacheEntry = null)
{
// Return staled cache entry if we can
if ($cacheEntry instanceof CacheEntry && $cacheEntry->serveStaleIfError()) {
return $cacheEntry->getResponse()->withHeader(self::HEADER_CACHE_INFO, self::HEADER_CACHE_STALE);
}
return;
}