When the app is being dumb, people put caching in to hide the data flow problems. When the data flow problems are hidden, they multiply, and then turning it off again is highly improbable.
Caching has sucked all the fun out of too many projects I’ve been associated with.
Do cache headers and cache busting first. You can always put a transparent cache in front of your REST endpoints in prod. After debugging the browser caching. Don’t write your own caching implementation. Please.
