Is there a way to stop shiny from doing SEND {"busy":"busy"}? It causes the browser's dev tools code view to refresh every time it happens. I didn't notice this until using observe({invalidateLater(1000)}) because it was infrequent. Alternatively, is there something similar to observe({invalidateLater(1000)}) which I can use to check for server-side changes to data but which doesn't SEND {"busy":"busy"}, or is there a way to prevent html/css/js from changing / refreshing when shiny does SEND {"busy":"busy"}?