Plugin follows duplicate behavior behavior of new-entry

frontend/static/new-entry.js

@@ -198,8 +198,11 @@
       if (!response.ok) return;
       const data = await response.json();
       if (data.exists) {
+        // Re-derive the match locally: browser URL normalization (e.g. trailing slashes) can
+        // make the server's raw string comparison disagree even when the URLs are equivalent.
+        const urlMatches = data.url_matches || (data.stored_url && removeKnownTrackingParams(data.stored_url) === url);
         let message = 'This link already exists. ';
-        if (!data.url_matches) {
+        if (!urlMatches) {
           message += 'But, the stored link has a different URL (missing or different parameters).';
           message += '\nWhen you save the entry you risk a duplicate entry.';
         } else {

frontend/templates/new-entry.html

@@ -103,6 +103,6 @@
     </footer>
 
     <script src="/static/auth-header.js"></script>
-    <script src="/static/new-entry.js?v=7"></script>
+    <script src="/static/new-entry.js?v=8"></script>
   </body>
 </html>