%% You should probably cite rfc8586 instead of this I-D.
@techreport{ietf-httpbis-cdn-loop-02,
    number =    {draft-ietf-httpbis-cdn-loop-02},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-ietf-httpbis-cdn-loop/02/},
    author =    {Stephen Ludin and Mark Nottingham and Nick Sullivan},
    title =     {{Loop Detection in Content Delivery Networks (CDNs)}},
    pagetotal = 6,
    year =      2019,
    month =     feb,
    day =       3,
    abstract =  {This document defines the CDN-Loop request header field for HTTP. CDN-Loop addresses an operational need that occurs when an HTTP request is intentionally forwarded between Content Delivery Networks (CDNs), but is then accidentally or maliciously re-routed back into the original CDN causing a non-terminating loop. The new header field can be used to identify the error and terminate the loop.},
}