@misc{rfc8246,
    series =    {Request for Comments},
    number =    8246,
    howpublished =  {RFC 8246},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC8246},
    url =       {https://www.rfc-editor.org/info/rfc8246},
    author =    {Patrick McManus},
    title =     {{HTTP Immutable Responses}},
    pagetotal = 6,
    year =      2017,
    month =     sep,
    abstract =  {The immutable HTTP response Cache-Control extension allows servers to identify resources that will not be updated during their freshness lifetime. This ensures that a client never needs to revalidate a cached fresh resource to be certain it has not been modified.},
}