Try another fix

src/run.py

@@ -8,7 +8,7 @@ from flask import render_template
 from flask_migrate import upgrade
 import awsgi
 import base64
-
+import mimetypes
 
 from flask import send_from_directory, request, make_response
 app = create_app()
@@ -16,16 +16,24 @@ app = create_app()
 # Patch static file serving to base64-encode for Lambda/awsgi
 @app.route('/static/<path:filename>')
 def static_files(filename):
-    # Serve static files with base64 encoding for Lambda
     static_folder = os.path.join(app.root_path, 'static')
-    response = make_response(send_from_directory(static_folder, filename))
+    file_path = os.path.join(static_folder, filename)
-    # Only base64-encode for binary types
+    content_type, _ = mimetypes.guess_type(file_path)
-    content_type = response.headers.get('Content-Type', '')
+    if not content_type:
+        content_type = "application/octet-stream"
     binary_types = ["application/octet-stream", "image/", "application/pdf", "font/"]
     if any(content_type.startswith(b) for b in binary_types):
-        # Mark for lambda_handler to base64 encode
+        # Read file as bytes and base64 encode
-        response.headers['X-Is-Binary'] = '1'
+        with open(file_path, "rb") as f:
-    return response
+            data = f.read()
+        encoded = base64.b64encode(data).decode("utf-8")
+        response = make_response(encoded)
+        response.headers["Content-Type"] = content_type
+        response.headers["Content-Transfer-Encoding"] = "base64"
+        response.headers["X-Is-Binary"] = "1"
+        return response
+    # For non-binary, use normal send_from_directory
+    return send_from_directory(static_folder, filename)
 
 @app.cli.command("init-db")
 def init_db_command():