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By default, callr::rcmd_safe_env suppresses the ability to open a browser window. This is the default execution environment within callr::r. However, opening a browser is expected behavior within the learnr package and should not be suppressed.

Usage

safe_env()

Value

A list of envvars, modified from callr::rcmd_safe_env().

Examples

safe_env()
#>             CYGWIN            R_TESTS        R_PDFVIEWER 
#> "nodosfilewarning"                 ""            "false"