Shib SP's MetadataProvider is not downloading last metadata xml from given url

[Peter Schober]

* Kumar, Prasanth (ELS-LON) via users <users at shibboleth.net> [2022-08-08 14:58]:
> > Could someone help me to understand how Shib SP's MetadataProvider is doing comparison and says metadata xml is unchanged?
> 
> >>My first suggestion would be to check the ETags.
> >>/Rod
> 
> Thanks for your suggestion Rod.
> I did 'curl -I' to check the 'etag' and I can see the 'etag' value is getting changed for every xml update.

last-modified, then maybe?

-peter