diff --git a/cypress/integration/origin-save.spec.js b/cypress/integration/origin-save.spec.js
--- a/cypress/integration/origin-save.spec.js
+++ b/cypress/integration/origin-save.spec.js
@@ -174,7 +174,7 @@
         let html = '';
         if (saveStatus === 'succeed') {
           let browseOriginUrl = `${this.Urls.browse_origin()}?origin_url=${this.originSaveJSON.data[i].origin_url}`;
-          browseOriginUrl += `&timestamp=${this.originSaveJSON.data[i].visit_date}`;
+          browseOriginUrl += `&timestamp=${encodeURIComponent(this.originSaveJSON.data[i].visit_date)}`;
           html += `<a href="${browseOriginUrl}">${this.originSaveJSON.data[i].origin_url}</a>`;
         } else {
           html += this.originSaveJSON.data[i].origin_url;
diff --git a/swh/web/assets/src/bundles/save/index.js b/swh/web/assets/src/bundles/save/index.js
--- a/swh/web/assets/src/bundles/save/index.js
+++ b/swh/web/assets/src/bundles/save/index.js
@@ -90,7 +90,7 @@
                 const sanitizedURL = $.fn.dataTable.render.text().display(data);
                 if (row.save_task_status === 'succeed') {
                   let browseOriginUrl = `${Urls.browse_origin()}?origin_url=${sanitizedURL}`;
-                  browseOriginUrl += `&amp;timestamp=${row.visit_date}`;
+                  browseOriginUrl += `&amp;timestamp=${encodeURIComponent(row.visit_date)}`;
                   html += `<a href="${browseOriginUrl}">${sanitizedURL}</a>`;
                 } else {
                   html += sanitizedURL;