Netlify supports redirects and rewrites which we can use as a reverse proxy from an /mida route. In your netlify.toml file, add a redirect like this:
[[redirects]] from = "/mida/*" to = "https://cdn.mida.so/:splat" host = "cdn.mida.so" status = 200 force = true
Once done, set the /mida route of your domain as the md_cdn in your Mida.so initialization like this:
<script> window.md_cdn = 'https://www.your-domain.com/mida' </script> <script src="https://www.your-domain.com/mida/js/optimize.js?key=XXXXXX" />
Once updated, deploy your changes on Netlify and check that Mida.so requests are going to https://www.your-domain.com/mida by checking the network tab on your domain.