What deployment and hosting considerations are genuinely specific to a Flutter web app, including properly configuring correct routing on the actual hosting server and setting up an effective caching strategy?

Deploying a Flutter web app to a genuine production hosting environment requires properly configuring the hosting server to correctly redirect every single unmatched specific route back to your app's own main index.html file, since your Flutter app itself, rather than the actual hosting server, is genuinely responsible for handling client side routing internally, and additionally establishing an effective caching strategy for your app's compiled JavaScript and other static asset files helps ensure returning visitors experience meaningfully faster subsequent load times, while also properly configuring appropriate cache invalidation to reliably ensure users genuinely receive your app's latest actually deployed version rather than an outdated previously cached one.

# Firebase Hosting rewrite rule example
{
  "rewrites": [{ "source": "**", "destination": "/index.html" }]
}