private static async Task WriteHeadersAsync(StreamWriter writer, IHeaderCollection headerCollection)
{
foreach (var header in headerCollection.Where(ShouldSendHeader).OrderBy(h => h.Name, StringComparer.Ordinal)
)
{
await writer.WriteAsync(header.Name).ConfigureAwait(false);
await writer.WriteAsync(": ").ConfigureAwait(false);
await writer.WriteAsync(header.First()).ConfigureAwait(false);
await writer.WriteLineAsync().ConfigureAwait(false);
}
}
