--- a/www/index.html	2026-10-30 18:04:00.636693041 -0300
+++ b/www/index.html	2026-10-30 18:10:57.072548730 -0300
@@ -1,4 +1,5 @@
 <html>
+  <meta http-equiv="Content-Security-Policy" content="default-src 'self'; script-src 'self' 'unsafe-inline'; style-src 'self' 'unsafe-inline'; img-src 'self' data:; font-src 'self'; connect-src 'self'">
   <link rel="icon" href="stc/favicon.png" type="image/png"></link>
   <link rel="stylesheet" href="stc/game.css" type="text/css"></link>
   <script src="stc/third-party/jquery-3.3.1.min.js" language="javascript"></script>
@@ -8,11 +9,6 @@
   <meta name="mobile-web-app-capable" content="yes">
   <meta name="apple-mobile-web-app-capable" content="yes">
   <meta description="A puzzle game in the style of Sudoku or Picross.">
-  <meta property="og:title" content="Linjat - a puzzle game">
-  <meta property="og:description" content="A puzzle game in the style of Sudoku or Picross.">
-  <meta property="og:image" content="https://linjat.snellman.net/stc/linjat-big.png">  
-  <meta name="twitter:creator" content="@juhosnellman">
-  <meta name="twitter:card" content="summary">
   <head>
     <title>Linjat - a puzzle game</title>
   </head>
@@ -35,20 +31,14 @@
       <div class="help">
         <h2>About</h2>
         <p>
-          <i>Linjat</i> designed and written by <a href="https://www.snellman.net/">
-            Juho Snellman</a>. Source on <a href="https://github.com/jsnell/linjat">GitHub</a>.
+          <i>Linjat</i> designed and written by Juho Snellman. MIT licence.
         </p>
 
         <h2>Open source</h2>
         <p>
           <ul>
-            <li>jQuery v3.3.1, (c) JS Foundation and other contributors
-              <a href="https://github.com/jquery/jquery/blob/master/LICENSE.txt">
-                (license)
-              </a>
-            <li><a href="https://github.com/marcelommp/Coiny">Coiny</a>, 
-              (c) Marcelo Magalh&atilde;es
-              <a href=https://github.com/marcelommp/Coiny/blob/gh-pages/OFL.txt>(license)</a>
+            <li>jQuery v3.3.1, (c) JS Foundation and other contributors (MIT license)
+            <li>Coiny, (c) Marcelo Magalh&atilde;es (SIL Open Font License 1.1)
           </ul>
         </p>
         </ul>
--- a/www/stc/game.css	2026-10-30 18:04:00.637787193 -0300
+++ b/www/stc/game.css	2026-10-30 18:10:57.073468337 -0300
@@ -1,6 +1,6 @@
 @font-face{ 
     font-family: 'coiny';
-    src: url('/stc/third-party/Coiny-Regular.ttf');
+    src: url('third-party/Coiny-Regular.ttf');
 }
 
 * {