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#5875 ✓resolved

render_to_string :json (or :xml or :update) before render results in DoubleRenderError

Reported by aduffeck | October 28th, 2010 @ 01:22 PM | in 3.x

In Rails3 render_to_string :json => ... (and :xml and :udpate) alters the response_body and thus makes subsequent render calls raise a DoubleRenderError

The following example works in Rails 2.3.8 but doesn't in Rails 3.0.1

class TestController < ApplicationController
  def test
    render :text => render_to_string(:json => "[]")

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