fix: bug 37496 item barcodes should go to specific item

admin-js/catalog-detail.js

@@ -0,0 +1,18 @@
+// Bug 37496: Restore parameter to limit to details of one item
+if (location.pathname.match('/cgi-bin/koha/catalogue/detail.pl')) {
+    // holdings table not available on page load
+    setTimeout(() => {
+        console.log($('#holdings_table'))
+        // barcode is literally the only <td> with no unique classname :eyeroll:
+        $('#holdings_table td > a[href^="/cgi-bin/koha/catalogue/moredetail.pl?biblionumber="]').each(function (idx, el) {
+            console.log(el)
+            // parse item id from item#### fragment at end of link
+            const url = new URL(el.href)
+            const item = url.hash.match(/#item(\d+)/)[1]
+            if (item) {
+                url.searchParams.set('item', item)
+                $(this).attr('href', url.toString())
+            }
+        })
+    }, 1000)
+}