grey screen on 1.4.6 - Githubissues

rstudio / shiny-server

Host Shiny applications over the web.

https://rstudio.com/shiny/server

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grey screen on 1.4.6 #247

Open laoyang945 opened 7 years ago

laoyang945 commented 7 years ago

Hi there, I just upgraded shiny-server from 1.4.2 to 1.4.6. however, my shinydashboard app started with grey screen and didn't respond to any operations. Not sure if there are some changes of the ui specification. I have to roll back to 1.4.2 and everything is fine. any hints? thanks a lot

fereshtehRS commented 7 years ago

@laoyang945 Would you mind sending us more info on this:

Version of the packages you use with your application (sessionInfo)
Do you see the grey screen with all applications, or just the shinydashboard one?
A small app that reproduces the issue
Your shiny-server.conf file
Linux distribution and version

jcheng5 commented 7 years ago

@laoyang945 If it is hard for you to gather this info, it would be hugely helpful just to hear what it says in your browser's JavaScript error console. Thanks!

jcheng5 commented 7 years ago

@laoyang945, sorry to bug you, but we'd really like to know if there is a bug we need to fix here. Just the browser JavaScript error console messages would give us a good start!

rgbkrk commented 7 years ago

I see this on some users' machines, not all. We currently have shiny backed by ELB on Amazon and the websockets reliably fail. When sockjs does the fallback, it tries to do a POST to xhr_streaming. For some machines, this works reliably and we get a 200. On others it just plain doesn't send the request.