load image fallback

backend/main.py

@@ -103,6 +103,51 @@ def videos_proxy():
     except Exception as e:
         return jsonify({"error": str(e)}), 500
 
+@app.route('/api/image', methods=['GET', 'HEAD'])
+def image_proxy():
+    image_url = request.args.get('url')
+    if not image_url:
+        return jsonify({"error": "No URL provided"}), 400
+
+    parsed = urllib.parse.urlparse(image_url)
+    if parsed.scheme not in ('http', 'https') or not parsed.netloc:
+        return jsonify({"error": "Invalid target URL"}), 400
+
+    try:
+        safe_request_headers = {}
+        for k in ('User-Agent', 'Accept', 'Accept-Encoding', 'Accept-Language'):
+            if k in request.headers:
+                safe_request_headers[k] = request.headers[k]
+
+        resp = session.get(image_url, headers=safe_request_headers, stream=True, timeout=15, allow_redirects=True)
+
+        hop_by_hop = {
+            'connection', 'keep-alive', 'proxy-authenticate', 'proxy-authorization',
+            'te', 'trailers', 'transfer-encoding', 'upgrade'
+        }
+
+        forwarded_headers = []
+        for name, value in resp.headers.items():
+            if name.lower() in hop_by_hop:
+                continue
+            forwarded_headers.append((name, value))
+
+        if request.method == 'HEAD':
+            resp.close()
+            return Response("", status=resp.status_code, headers=forwarded_headers)
+
+        def generate():
+            try:
+                for chunk in resp.iter_content(1024 * 16):
+                    if chunk:
+                        yield chunk
+            finally:
+                resp.close()
+
+        return Response(generate(), status=resp.status_code, headers=forwarded_headers)
+    except Exception as e:
+        return jsonify({"error": str(e)}), 500
+
 @app.route('/')
 def index():
     return send_from_directory(app.static_folder, 'index.html')