Missing sidebar toggle icon using latest shiny version

[ismirsehregal]

Using the latest shiny_1.1.0.9001 (and shinydashboard_0.7.0) the sidebar toggle icon (burger icon) isn't displayed correctly:

Firefox:

Chrome:

Might be related to this?

# if (!require("devtools"))
#   install.packages("devtools")
# devtools::install_github("rstudio/shiny")

## app.R ##
library(shiny)
library(shinydashboard)

ui <- dashboardPage(
  dashboardHeader(),
  dashboardSidebar(),
  dashboardBody()
)

server <- function(input, output) { }

shinyApp(ui, server)

[wch]

Thanks for the report -- we're taking a look into the problem.