[R-pkg-team] Bug#1125899: r-cran-shiny: sliderInput displays empty textbox when using dates

[Aaron Nedelec]

Package: r-cran-shiny
Version: 1.10.0+dfsg-2
Severity: normal
X-Debbugs-Cc: aaron at anedelec.ca

Dear Maintainer,

This bug occurs when attempting to use Shiny's sliderInput component with date
values. For example the following example R application produces the bug:

library(shiny)
ui <- fluidPage(
    sliderInput("slider", "Date Slider", as.Date("2025-01-01"),
                as.Date("2025-12-01"), as.Date("2025-03-03"))
)
server <- function(input, output, session) {}
shinyApp(ui, server)

Running the above application produces a webpage containing the label and an
empty text entry box. It is expected that this program should produce a webpage
containing a slider rather than the text entry box.

This problem is not present when using the upstream Shiny package installed
from R via install.packages("shiny"). With this version installed and the
Debian r-cran-shiny package uninstalled, the above example program produces the
expected result.

Back in 2022 someone reported this bug to upstream Shiny where it was closed as
being a problem with the Debian version. This upstream bug report can be found
here: https://github.com/rstudio/shiny/issues/3573

Regards,
Aaron


-- System Information:
Debian Release: 13.3
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 6.12.57+deb13-amd64 (SMP w/4 CPU threads; PREEMPT)
Locale: LANG=en_CA.UTF-8, LC_CTYPE=en_CA.UTF-8 (charmap=UTF-8), LANGUAGE=en_CA:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages r-cran-shiny depends on:
ii  fonts-font-awesome                        5.0.10+really4.7.0~dfsg-4.1
ii  libjs-bootstrap                           3.4.1+dfsg-6
ii  libjs-d3                                  3.5.17-4
ii  libjs-es5-shim                            4.6.7-2
ii  libjs-highlight.js                        9.18.5+dfsg1-2
ii  libjs-jquery                              3.6.1+dfsg+~3.5.14-1
ii  libjs-jquery-datatables                   1.11.5+dfsg-2
ii  libjs-jquery-selectize.js                 0.12.6+dfsg-1.1
ii  libjs-jquery-ui                           1.13.2+dfsg-1
ii  libjs-json                                0~20221030+~1.0.8-1
ii  libjs-twitter-bootstrap-datepicker        1.3.1+dfsg1-4.1
ii  node-html5shiv                            3.7.3+dfsg-5
ii  node-normalize.css [libjs-normalize.css]  8.0.1-5
ii  r-base-core [r-api-4.0]                   4.5.0-3
ii  r-cran-bslib                              0.9.0+dfsg-3
ii  r-cran-cachem                             1.1.0-1
ii  r-cran-commonmark                         1.9.5-1
ii  r-cran-crayon                             1.5.3-1
ii  r-cran-fastmap                            1.2.0-1
ii  r-cran-fontawesome                        0.5.3-1
ii  r-cran-glue                               1.8.0-1
ii  r-cran-htmltools                          0.5.8.1-1
ii  r-cran-httpuv                             1.6.15+dfsg-1
ii  r-cran-jsonlite                           1.9.1+dfsg-1
ii  r-cran-later                              1.4.1+dfsg-1
ii  r-cran-lifecycle                          1.0.4+dfsg-1
ii  r-cran-mime                               0.12-2
ii  r-cran-promises                           1.3.2+dfsg-1
ii  r-cran-r6                                 2.6.1-1
ii  r-cran-rlang                              1.1.5-3
ii  r-cran-sourcetools                        0.1.7-1-1
ii  r-cran-withr                              3.0.2+dfsg-1
ii  r-cran-xtable                             1:1.8-4-2

Versions of packages r-cran-shiny recommends:
ii  r-cran-cairo      1.6-2-1
ii  r-cran-dt         0.33+dfsg-1
ii  r-cran-dygraphs   1.1.1.6+dfsg-4
ii  r-cran-future     1.34.0+dfsg-1
ii  r-cran-ggplot2    3.5.1+dfsg-1
ii  r-cran-knitr      1.50+dfsg-1
ii  r-cran-magrittr   2.0.3-1
ii  r-cran-markdown   1.13-1
ii  r-cran-ragg       1.3.3-1
ii  r-cran-rmarkdown  2.29+dfsg-1
ii  r-cran-sass       0.4.9+dfsg-1
ii  r-cran-testthat   3.2.3-1
ii  r-cran-yaml       2.3.10-1

r-cran-shiny suggests no packages.

-- no debconf information