diff --git a/app.js b/app.js
index a7e2bea..ef0a5b3 100644
--- a/app.js
+++ b/app.js
@@ -284,15 +284,15 @@ function ansiToHtml(text) {
   }
   out += s.slice(last);
   if (spans > 0) out += '</span>'.repeat(spans);
-  // Linkify — detect images/video for inline preview toggle
-  return out.replace(/(https?:\/\/[^\s<>"&]+)/g, (url) => {
-    const clean = url.replace(/&amp;/g,'&');
-    const isImg = /\.(png|jpe?g|gif|webp|svg|bmp)(\?.*)?$/i.test(clean);
-    const isVid = /\.(mp4|webm|ogv|mov)(\?.*)?$/i.test(clean);
-    const preview = (isImg || isVid)
-      ? `<button class="media-toggle" data-url="${url}" data-type="${isImg?'img':'vid'}" title="Show/hide media">▶</button>`
+  // Linkify URLs; match through &amp; so query strings aren't cut short
+  return out.replace(/https?:\/\/(?:[^\s<>"\']|&amp;)+/g, (url) => {
+    const href  = url.replace(/&amp;/g, '&');
+    const isImg = /\.(png|jpe?g|gif|webp|svg|bmp)(\?.*)?$/i.test(href);
+    const isVid = /\.(mp4|webm|ogv|mov)(\?.*)?$/i.test(href);
+    const btn   = (isImg || isVid)
+      ? ` <button class="media-toggle" data-url="${href}" data-type="${isImg?'img':'vid'}" title="Show/hide">&#9654;</button>`
       : '';
-    return `<a href="${url}" target="_blank" rel="noopener noreferrer">${url}</a>${preview}`;
+    return `<a href="${href}" target="_blank" rel="noopener noreferrer">${url}</a>${btn}`;
   });
 }