Re: [elpa] externals/marginalia 94fc7f0: README: Add ELPA badge

[chad <yandros@gmail.com>]

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On Thu, Jun 3, 2021 at 8:16 AM Stefan Monnier <monnier@iro.umontreal.ca>
wrote:

> Any change we can use something less aggressive than `no-cache`,
> e.g. indicate that it should be considered stale after, say, 24h?
>

You can try using the s-maxage setting for Cache Control, ala:

s-maxage=<seconds>
Overrides max-age or the Expires header, but only for shared caches (e.g.,
proxies). Ignored by private caches.


I would definitely test it before investing too much effort; in a past
life, I spent waaay too much time dealing with the general internet's
understanding/respect for the refinements of communication between clients,
servers, proxies, and caches. (tl;dr: The internet is more broken than you
expect. Yes, even you, for nearly all values of "you".)

If s-maxage doesn't work, you might have more luck with max-age (which I
guess is consistent in the number of hyphens?) instead.

You should be able to use the Apache "Header" directive, something like:

  Header set Cache-control "s-maxage=86400, public"

put inside the relevant <Directory "/mumble/badges"> or <Filesmatch
"\.svg$"> or whatnot wrapper.

I haven't actually done this in a very long time, but a quick net-search
suggests that it's still basically as functional. Hope this helps,
~Chad

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