ExecJS coffee script not showing line numbers for compile errors (Rails asset pipeline)

Question

In one of my Rails apps, ExecJS is not showing line numbers for coffeescript compilation errors. My compile error message will look like this:

ExecJS::RuntimeErr         


        

Answer 1

This can also be fixed with this patch that embeds the line information in the error message for the ruby-coffee-script gem.

If you're using source maps, this patch fixes the coffee-rails-source-maps gem.