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joshwlewis/application.rb

Last active August 29, 2015 13:56
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Rack::Cors doesn't insert headers when Rails app errors out. Fix it by inserting Rack::Cors at the top of your middleware stack.
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application.rb
config.middleware.insert 0, Rack::Cors do
allow do
origins(/^https:\/\/app.client.com$/)
resource '*',
headers: :any,
methods: [:get, :put, :post, :delete]
end
end
@joshwlewis
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May solve your issues that look like this:

XMLHttpRequest cannot load https://api.server.com/. Origin https://app.client.com/ is not allowed by Access-Control-Allow-Origin.

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