Try another fix

src/run.py

@@ -9,8 +9,24 @@ from flask_migrate import upgrade
 import awsgi
 import base64
 
+
+from flask import send_from_directory, request, make_response
 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))
+    # Only base64-encode for binary types
+    content_type = response.headers.get('Content-Type', '')
+    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
+        response.headers['X-Is-Binary'] = '1'
+    return response
+
 @app.cli.command("init-db")
 def init_db_command():
     """Initialize the database."""
@@ -47,18 +63,17 @@ if __name__ == '__main__':
 def lambda_handler(event, context):
     response = awsgi.response(app, event, context)
     headers = response.get("headers", {})
-    content_type = headers.get("Content-Type", headers.get("content-type", ""))
-    # List of binary content types (add more as needed)
-    binary_types = ["application/octet-stream", "image/", "application/pdf"]
-    if any(content_type.startswith(b) for b in binary_types):
-        # Base64 encode the body if not already encoded
+    # Only base64-encode if our custom header is set (for /static)
+    if headers.get("X-Is-Binary") == "1":
         if not response.get("isBase64Encoded"):
             body = response["body"]
             if isinstance(body, str):
-                # Try to encode as latin1 to preserve binary data
                 body = body.encode("latin1")
+            import base64
             response["body"] = base64.b64encode(body).decode("utf-8")
             response["isBase64Encoded"] = True
+        # Remove the custom header from the response
+        response["headers"].pop("X-Is-Binary", None)
     return response
 
 def lambda_handler_upgrade_db(event, context):