From f376b24106982753b22bf8b1a714d1bb6d856a10 Mon Sep 17 00:00:00 2001
From: Davide Scaini <davide.scaini@alumni.cern>
Date: Wed, 15 Apr 2026 14:44:34 +0200
Subject: [PATCH] fix: handle absolute detail_url paths in loadActivity and
 loadTimeseries
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resolveShards rewrites detail_url to absolute paths (e.g. /data/brut/_merged/activities/{id}.json)
when fetching from a user shard. loadActivity and loadTimeseries only checked for http:// prefixes
and treated /data/... paths as relative, producing double /data//data/... in the fetch URL → 404.

Fix: treat URLs starting with / as already absolute, same as http:// URLs.
---
 site/src/lib/dataloader.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/site/src/lib/dataloader.ts b/site/src/lib/dataloader.ts
index f427981..a19dc87 100644
--- a/site/src/lib/dataloader.ts
+++ b/site/src/lib/dataloader.ts
@@ -168,7 +168,7 @@ export async function loadActivity(
   if (cached) return cached;
 
   try {
-    const url = detailUrl.startsWith('http')
+    const url = detailUrl.startsWith('http') || detailUrl.startsWith('/')
       ? detailUrl
       : `${baseUrl}data/${detailUrl}`;
     return await fetchJSON<ActivityDetail>(url);
@@ -199,7 +199,7 @@ export async function loadTimeseries(
 
     if (timeseriesUrl.startsWith('http')) {
       url = timeseriesUrl;
-    } else if (detailUrl.startsWith('http')) {
+    } else if (detailUrl.startsWith('http') || detailUrl.startsWith('/')) {
       // absolute detailUrl (browser shard resolution) → same directory
       const dir = detailUrl.substring(0, detailUrl.lastIndexOf('/') + 1);
       url = `${dir}${filename}`;