rails/rails — pull request #5296 by dlitz (2012-03-06 00:50:37+00:00)
Title: Compute asset paths from the request if RAILS_RELATIVE_URL_ROOT not set

This fixes https://github.com/rails/rails/issues/910 ("Rails is not a Rack Application (SCRIPT_NAME vs. relative_url_root ?)"), which was marked closed during the Lighthouse -> GitHub bugtracker migration for some reason.