Fix stats_server.py download - use blob fetch for cross-origin

Author: G-Fourteen

web/index.html

@@ -677,11 +677,9 @@ <h2 style="color: #ff00ff; font-size: 22px; margin-bottom: 15px;">⚡ AUTO-INSTA
 
             <div style="background: #1a1a2e; border: 1px solid #444; border-radius: 6px; padding: 15px; margin: 20px 0;">
                 <p style="font-size: 13px; color: #fff; margin-bottom: 15px;">Step 1: Download the server file</p>
-                <a href="https://raw.githubusercontent.com/Unity-Lab-AI/CORA/main/services/stats_server.py"
-                   download="stats_server.py"
-                   style="display: inline-block; background: #ff00ff; color: #000; padding: 12px 25px; border-radius: 4px; text-decoration: none; font-weight: bold; font-size: 14px;">
+                <button onclick="downloadStatsServer()" style="background: #ff00ff; color: #000; padding: 12px 25px; border-radius: 4px; border: none; cursor: pointer; font-weight: bold; font-size: 14px;">
                     📥 Download stats_server.py
-                </a>
+                </button>
 
                 <p style="font-size: 13px; color: #fff; margin: 20px 0 10px 0;">Step 2: Run it in a terminal</p>
                 <code style="color: #00ff00; font-size: 14px; display: block; padding: 10px; background: #0a0a15; border-radius: 4px;">python stats_server.py</code>
@@ -2761,6 +2759,27 @@ <h1>C.O.R.A</h1>
             document.getElementById('firstTimeModal').classList.add('visible');
         }
 
+        async function downloadStatsServer() {
+            // Fetch and download stats_server.py as a file
+            try {
+                const response = await fetch('https://raw.githubusercontent.com/Unity-Lab-AI/CORA/main/services/stats_server.py');
+                if (!response.ok) throw new Error('Failed to fetch');
+                const blob = await response.blob();
+                const url = window.URL.createObjectURL(blob);
+                const a = document.createElement('a');
+                a.href = url;
+                a.download = 'stats_server.py';
+                document.body.appendChild(a);
+                a.click();
+                document.body.removeChild(a);
+                window.URL.revokeObjectURL(url);
+            } catch (e) {
+                // Fallback: open in new tab so user can save manually
+                alert('Auto-download failed. Opening file in new tab - right-click and "Save As"');
+                window.open('https://raw.githubusercontent.com/Unity-Lab-AI/CORA/main/services/stats_server.py', '_blank');
+            }
+        }
+
         async function runAutoInstall() {
             // Switch to backend terminal view so user can see progress
             const mainContent = document.getElementById('mainContent');