[Tile-serving] [openstreetmap/mod_tile] Difficulty to expose metatile as a HTTP response header? (Issue #332)

[Grant]

I am looking at improving caching and purging for tile.openstreetmap.org see: https://github.com/openstreetmap/operations/issues/947

How much effort would it be to expose the source metatile in a HTTP response header?
eg:

```
Surrogate-Key: meta/z/x/y 
```

Would there be a performance impact?

-- 
Reply to this email directly or view it on GitHub:
https://github.com/openstreetmap/mod_tile/issues/332
You are receiving this because you are subscribed to this thread.

Message ID: <openstreetmap/mod_tile/issues/332 at github.com>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/tile-serving/attachments/20230901/74a8f2c3/attachment.htm>