User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:10.0.2) Gecko/20100101 Firefox/10.0.2 Build Identifier: R’s help.start() does not feed any content to the Web browser when run under Cantor. Reproducible: Always Steps to Reproduce: 1. Open a new R worksheet. 2. Execute command help.start() Actual Results: 1. starting httpd help server ... done; Firefox visits the help URL and waits for content which never arrives. Expected Results: 1. The R Language documentation home page. The documentation appears all right when you start R in a console.