~dupunkto/gitz

diff --git a/gui/blob.php b/gui/blob.php
index 440b387..51688ea 100644
--- a/gui/blob.php
+++ b/gui/blob.php
@@ -26,21 +26,10 @@
   if($mime == 'text/x-shellscript') $mode = 'text/x-sh';
 
   // If the file info is being useless, try to match using
-  // file extension data instead.
-  else if($mime == 'application/octet-stream') {
-    $mode = match($ext) {
-      'png' => 'image/png',
-      'webp' => 'image/webp',
-      'jpg' => 'image/jpg',
-      'jpeg' => 'image/jpg',
-      default => $mime
-    };
-  }
-
-  // Again, if the file info is being useless, try using
-  // the extension :)
+  // file extension instead.
   else if($mime == 'text/plain') {
     $mode = match($ext) {
+      'md' => 'text/x-markdown',
       'json' => 'application/json',
       'jsonld' => 'application/ld+json',
       'ts' => 'application/typescript',
@@ -51,15 +40,16 @@
     if(str_ends_with($ext, 'html')) $mime_type = 'text/html';
   }
 
-  else {
-    $mode = $mime;
-  }
+  // For all other cases, let CodeMirror decide.
+  else $mode = $mime;
 ?>
 
 <div class="container blob">
   <?php if(str_starts_with($mime, 'image/')): ?>
     <img src="data:<?= $mime ?>;base64,<?= base64_encode($blob) ?>">
-  <?php else: ?> 
+  <?php elseif($mime == 'application/octet-stream'): ?>
+    <p>Cannot render binary data.</p>
+  <?php else: ?>
     <pre class="code"><code><?= htmlspecialchars($blob) ?></code></pre>
 
     <script>