Caching can be used to improve the performance of Community Visualizations.
Using devMode
Looker Studio caches community components by default. Setting devMode to
true in the manifest bypasses the cache, allowing you to load the latest
version of your code. If devMode is not set, it defaults to false, which
means that Looker Studio will serve a cached version of your community
component.
The cached version of the component automatically updates every 12 hours. To
bypass the cache for a previously cached component, set devMode to true
and allow 12 hours for the cached devMode preference to expire.