public
Description: Makes your Rails partials output HTML comments at the start and end
Homepage:
Clone URL: git://github.com/gwynm/noisy_partials.git
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file init.rb
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README
In development mode, this plugin will add html comments at the start and end of partial rendering, so you can see which 
partial is creating the HTML code you're interested in.

http://gwynmorfey.com/categories/1-on-the-job/articles/155-tracing-through-rails-partials