Comment 24 for bug 367531

Another use case: the R online help (see http://www.r-project.org/ about R) does open help pages in browser, and functions as a http server to provide these pages, probably from some compressed representation. The opened URL refers to 127.0.0.1:<some high port number>. Due to this bug, users will only get an error message when they try to open the help, which can be confusing indeed. The correct solution of unckecking the offline mode menu item isn't obvious enough.