title: communication between R shiny modules deployment problem
body: <p>I have question about communication between R shiny modules.  I used golem package develop an app with two modules: data and analysis <a href="https://xuemaozhang.shinyapps.io/reactivedata/" rel="nofollow noreferrer">https://xuemaozhang.shinyapps.io/reactivedata/</a>
  To share a data set I used reactiveValues, values = reactiveValues(data_imported=NULL) in app_server.R.</p>
  <p>After I deployed the app to shinyapps.io, I found that it does not allow multiple users: when one user changes the data, other users will see the same updated data as well.   I am new to shiny app development.  How the problem can be solved?   The source code can bee seen from my github site: <a href="https://github.com/xuemaozhang/reactivedata" rel="nofollow noreferrer">https://github.com/xuemaozhang/reactivedata</a></p>