Web - Full-resolution image download performance for new uploads

[eddy-geek]

Description

Full-resolution image download is excruciating slow on ente web (free tier)

URL: https://files.ente.io/?fileID=147581282
Device: Chrome, Ubuntu 24.04
Network: fiber
I don't see the issue on Android, it takes 2 seconds on the same network.

Response headers with Cloudflare stuff (redacted a bit in case): ...

accept-ranges:
bytes

access-control-allow-origin:
*
alt-svc:
h3=":443"; ma=86400
cache-control:
max-age=0, no-cache, no-store
cf-cache-status:
DYNAMIC
cf-ray:
...-MXP
content-length:
2268924
content-type:
binary/octet-stream
date:
Wed, 12 Feb 2025 20:50:07 GMT
etag:
"..."
last-modified:
Wed, 12 Feb 2025 20:32:36 GMT
nel:
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
report-to:
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=..."}],"group":"cf-nel","max_age":604800}
server:
cloudflare
server-timing:
cfL4;desc="?proto=TCP&rtt=87042&min_rtt=62617&rtt_var=16852&sent=78560&recv=283186&lost=0&retrans=5965&sent_bytes=34598141&recv_bytes=352603251&delivery_rate=11535&cwnd=30&unsent_bytes=0&cid=...&ts=1422174&x=0"
strict-transport-security:
max-age=63072000
vary:
Accept-Encoding
x-amz-id-2:...
x-amz-request-id:...
x-amz-version-id:  ...

Here is an example showing the dev tools showing 11s for a ~2MB image (content-length: 2268924)

It would anyway be a good idea to preload at least the "next" image, but I hope something else can be done.

Version

No response

What product are you using?

Ente Photos

What platform are you using?

Web - Chrome

[eddy-geek]

edit: it's much better now.
it may be related to the fact these were newly uploaded. maybe there's some Object store and/or CDN caching machinery that was having trouble updating ?