How do I set HTTP Headers in Ruby/Sinatra app, hosted on Heroku?

ruby http-headers heroku sinatra varnish

Usually dynamically generated pages have no caching so the

response.headers['Cache-Control'] = 'public, max-age=300'

header is the right starting point.

Try using one of the services at "Use a Web-based service" to see if they show up in the HTTPd header sent back from your site.

ruby http-headers heroku sinatra varnish

You can also access the header fields of the response object with this syntax:

response['Cache-Control'] = 'public, max-age=600'

ruby http-headers heroku sinatra varnish

In Sinatra you can use the cache_control method:

get '/' do  # Cache for 24 hours  cache_control :public, max_age: 86400  # Your magic goes hereend

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