fix: revoke CSV blob object URL after download to prevent memory leak

d04b35d339b7b0a9c5e9b4d952b21efd421a66c1 · 2026-05-18 17:42:17 -0700 · Steve

Files touched

M index.html

Diff

commit d04b35d339b7b0a9c5e9b4d952b21efd421a66c1
Author: Steve <steve@designerwallcoverings.com>
Date:   Mon May 18 17:42:17 2026 -0700

    fix: revoke CSV blob object URL after download to prevent memory leak
---
 index.html | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/index.html b/index.html
index 3f56ee4..f55ea3d 100644
--- a/index.html
+++ b/index.html
@@ -487,9 +487,11 @@ async function exportCSV() {
   if (!r.ok) { toast('CSV export failed', 'err'); return; }
   const blob = await r.blob();
   const a = document.createElement('a');
-  a.href = URL.createObjectURL(blob);
+  const objectUrl = URL.createObjectURL(blob);
+  a.href = objectUrl;
   a.download = `4square-${CURRENT.kind}-${Date.now()}.csv`;
   document.body.appendChild(a); a.click(); document.body.removeChild(a);
+  URL.revokeObjectURL(objectUrl);
   toast(`Exported ${selected.size} row(s) as CSV`, 'ok');
 }

← b358ef8 feat: bulk tag editor for wallco rows · back to 4square Admin · fix: handle fetch network failures in loadSources and loadPr 2c2f866 →