#1125899 r-cran-shiny: sliderInput displays empty textbox when using dates

#1125899#5
Date:
2026-01-18 18:08:01 UTC
From:
To:
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