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How do you add a custom http header?

I'm looking to add custom http headers to a Ruby on Rails app that is currently hosted on Heroku.

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Jngai1297 Avatar asked May 20 '13 16:05


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1 Answers


response.headers['HEADER NAME'] = 'HEADER VALUE' 

either in a specific method or to a before_filter method of your application controller depending on whether you need this to be added in a specific or to all of your responses.

UPDATE for Rails 5 - February 24th, 2018

As noted by @BrentMatzelle in the comments, for Rails 5:

response.set_header('HEADER NAME', 'HEADER VALUE') 
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Lazarus Lazaridis Avatar answered Sep 28 '22 12:09

Lazarus Lazaridis