Error when using trelliscope in shiny app

[hueanhpt]

Dear sir,

I tried to use trelliscopejs in shiny context but unfortunately the library was crashed. It displayed a blank frame with this text: Couldn't load config: http://127.0.0.1:4499/appfiles/config.jsonp?__loadTrscopeConfig__6aa8b26a=jsonp_z4meir93mfzis31

This snippet did work on RStudio(console + viewer)

mpg %>%
       group_by(manufacturer, class) %>%
       summarise(panel = panel(
         qplot(cty, hwy) + xlab("cty") + ylab("hwy") +
           xlim(7, 37) + ylim(9, 47) + theme_bw()
       )) %>%
       trelliscope(name = "dplyr_gg")

My shiny app as below: ui.R

library(shiny)
shinyUI(fluidPage(
  trelliscopeOutput("plot")
))

server.R

library(shiny)
library(trelliscopejs)
library(dplyr)
library(ggplot2)

shinyServer(function(input, output) {
  output$plot <- renderTrelliscope({
    return(
      mpg %>%
        group_by(manufacturer, class) %>%
        summarise(panel = panel(
          qplot(cty, hwy) + xlab("cty") + ylab("hwy") +
            xlim(7, 37) + ylim(9, 47) + theme_bw()
        )) %>%
        trelliscope(name = "dplyr_gg")
    )
  })
})

My session info:

R version 3.3.1 (2016-06-21)
Platform: x86_64-apple-darwin13.4.0 (64-bit)
Running under: OS X 10.11 (El Capitan)

locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
[1] ggplot2_2.2.0       dplyr_0.5.0         trelliscopejs_0.1.3 shiny_0.14.2       

loaded via a namespace (and not attached):
 [1] Rcpp_0.12.6             rstudioapi_0.6          knitr_1.15.1           
 [4] magrittr_1.5            devtools_1.12.0         progress_1.1.2         
 [7] munsell_0.4.3           colorspace_1.2-6        xtable_1.8-2           
[10] R6_2.2.0                plyr_1.8.4              tools_3.3.1            
[13] grid_3.3.1              gtable_0.2.0            DBI_0.5-1              
[16] withr_1.0.2             htmltools_0.3.5         yaml_2.1.14            
[19] lazyeval_0.2.0          assertthat_0.1          digest_0.6.10          
[22] tibble_1.1              tidyr_0.6.0             purrr_0.2.2            
[25] htmlwidgets_0.8         DistributionUtils_0.5-1 base64enc_0.1-3        
[28] memoise_1.0.0           mime_0.5                labeling_0.3           
[31] scales_0.4.1            prettyunits_1.0.2       jsonlite_1.1           
[34] httpuv_1.3.3           

How could I fix the problem ?

[hafen]

Thanks for the example. I'll take a look and hopefully it will be fairly easy to fix. There are so many contexts these can be used in (web, RStudio viewer, R Markdown, notebooks, Shiny, etc.) that it is difficult to rigorously test them all, and I haven't given enough attention to Shiny yet as I haven't had any personal use cases for it yet, but I will take a look.

[hueanhpt]

Thanks for your reply. I'm looking forward to receiving your feedback.

[mrhopko]

This is shaping up really well. Unfortunately I've been unable to create a working shiny example.

Do you have a working example I can attempt to replicate?

Kind regards.

[kaneplusplus]

I'm seeing this problem as well and I've been able to reproduce it in the example above. Also Darwin.

> sessionInfo()
R version 3.4.0 (2017-04-21)
Platform: x86_64-apple-darwin15.6.0 (64-bit)
Running under: OS X El Capitan 10.11.6

Matrix products: default
BLAS: /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBLAS.dylib
LAPACK: /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libLAPACK.dylib

locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
[1] ggplot2_2.2.1       dplyr_0.5.0         trelliscopejs_0.1.8
[4] shiny_1.0.3        

loaded via a namespace (and not attached):
 [1] Rcpp_0.12.10            knitr_1.15.1            magrittr_1.5           
 [4] progress_1.1.2          munsell_0.4.3           colorspace_1.3-2       
 [7] xtable_1.8-2            R6_2.2.0                plyr_1.8.4             
[10] tools_3.4.0             webshot_0.4.0           grid_3.4.0             
[13] gtable_0.2.0            DBI_0.6-1               htmltools_0.3.6        
[16] yaml_2.1.14             lazyeval_0.2.0          assertthat_0.2.0       
[19] digest_0.6.12           tibble_1.3.0            tidyr_0.6.1            
[22] purrr_0.2.2             htmlwidgets_0.8         DistributionUtils_0.5-1
[25] base64enc_0.1-3         mime_0.5                labeling_0.3           
[28] compiler_3.4.0          scales_0.4.1            prettyunits_1.0.2      
[31] jsonlite_1.4            httpuv_1.3.3           

[iainmwallace]

Awesome package - I am also getting the same error when I try to create a shiny app. FYI - my use case is to let a user upload a table that will then be plotted using Trelliscope.

[hafen]

Yes there is a strange htmlwidget sizing issue I'm experiencing with Shiny apps. Sorry for the delay on this. I'm out for a couple of weeks but will look into this as soon as I can.

[statkclee]

+1

[blairj09]

+1

[ghost]

I managed to get this to work by including self_contained = TRUE in my trelliscope call

Ex. facet_trelliscope(~column, self_contained = TRUE)

[clabornd]

In my case this was due to the server not being allowed to guess the content type of the jsonp file when requesting the config. Adding the mapping jsonp = "application/javascript" to mimemap.R in mime appears to have solved it for me.