structuredAttrs is enabled

trying https://registry.npmjs.org/@astrojs/mdx/-/mdx-8.0.1.tgz
  % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
                                 Dload  Upload  Total   Spent   Left   Speed
100   9287 100   9287   0      0  26947      0                              0