rstudio - How to restrict Shiny fileInput to text files only? -

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i want restrict file browser displaying types of file specify, e.g. .txt files only. relevant snippets of code found following:

fileinput("in_file",            "input file:",           accept=c("txt/csv", "text/comma-separated-values,text/plain", ".csv")

however, does't filter files showing in browser .txt , .csv. ideas?

as far understand, that's right way it. if view app in rstudio viewer wouldn't anything, in browser should. i'm using chrome , ran code , did in fact show me txt , csv files.

of course user can still choose view other files going little select box , choosing view files, have consciously choose that. default csv , txt files shown


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