Add content-sha256 as a default allowed STS header (#10009)
Add content-sha256 as a default allowed STS header (#10009)

Also, alphabetize those headers... just because.
hashicorp/vault,rnaveiras/vault,rnaveiras/vault,rnaveiras/vault,rnaveiras/vault,hashicorp/vault,hashicorp/vault,hartsock/vault,hartsock/vault,hartsock/vault,hashicorp/vault,rnaveiras/vault,hartsock/vault,hashicorp/vault,hartsock/vault,hashicorp/vault