ecarpenter/rack-mini-profiler — pull request #1 by ecarpenter (2013-10-21 17:40:55+00:00)
Title: Remove rendering whitespace, issue 12

The profile_handler js file had a unicode character, U+FEFF, which is ZERO
WIDTH NO-BREAK SPACE. It represents UTF-16 and not UTF-8. This unicode
character is depracated and causes the issues seen where there is annoying
whitespace above the script when it is appended to the body by
Rack::Response.

reference: http://en.wikipedia.org/wiki/Byte_order_mark