404 on link to RFC

[Teufelchen1]

Hi! 👋

clicking on RFC 7252 on page https://coap.technology/spec.html yields a 404 from the ietf.org as the link is http instead of https.
See curl -I http://tools.ietf.org/html/rfc7252.

Teufelchen

[cabo]

Hi,

thanks for the report. I could reproduce this -- briefly. Now it works.
Seems to be a Heisenbug.

Notified upstream:
https://mailarchive.ietf.org/arch/msg/tools-discuss/doA8WVUjV0k0ewqJ93N9hbUcufo/