diff --git a/assets/javascripts/templates/notice_tmpl.js b/assets/javascripts/templates/notice_tmpl.js
index 49793eb571..26c8c947b1 100644
--- a/assets/javascripts/templates/notice_tmpl.js
+++ b/assets/javascripts/templates/notice_tmpl.js
@@ -7,3 +7,9 @@ app.templates.singleDocNotice = (doc) =>
 app.templates.disabledDocNotice = () =>
   notice(` <strong>This documentation is disabled.</strong>
 To enable it, go to <a href="/settings" class="_notice-link">Preferences</a>. `);
+
+app.templates.noOriginalLinkNotice = () =>
+  notice(` The original page link is not available for this documentation. `);
+
+app.templates.copyFailedNotice = () =>
+  notice(` Couldn't copy the original page link to the clipboard. `);
diff --git a/assets/javascripts/views/content/entry_page.js b/assets/javascripts/views/content/entry_page.js
index 961d90e1fa..8b7bc4dd52 100644
--- a/assets/javascripts/views/content/entry_page.js
+++ b/assets/javascripts/views/content/entry_page.js
@@ -221,17 +221,32 @@ app.views.EntryPage = class EntryPage extends app.View {
   onAltC() {
     const link = this.find("._attribution:last-child ._attribution-link");
     if (!link) {
+      this.showTransientNotice("noOriginalLink");
       return;
     }
-    console.log(link.href + location.hash);
-    navigator.clipboard.writeText(link.href + location.hash);
+    navigator.clipboard.writeText(link.href + location.hash).catch(() =>
+      this.showTransientNotice("copyFailed"),
+    );
   }
 
   onAltO() {
     const link = this.find("._attribution:last-child ._attribution-link");
     if (!link) {
+      this.showTransientNotice("noOriginalLink");
       return;
     }
     this.delay(() => $.popup(link.href + location.hash));
   }
+
+  showTransientNotice(type) {
+    if (this.transientNotice) {
+      clearTimeout(this.transientNoticeTimer);
+      this.transientNotice.deactivate();
+    }
+    this.transientNotice = new app.views.Notice(type);
+    this.transientNoticeTimer = setTimeout(() => {
+      this.transientNotice.deactivate();
+      this.transientNotice = null;
+    }, 3000);
+  }
 };