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Merge pull request #8093 from nikitug/keep_app_x_ua_compatible

Fix #8086 (BestStandardsSupport rewrites app X-UA-Compatible header)
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2 parents b31ea0c + d8c1404 commit 69cebae3b2201ac3c31dca8f6f29a2557831505f @carlosantoniodasilva carlosantoniodasilva committed Nov 1, 2012
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5 actionpack/CHANGELOG.md
@@ -1,5 +1,10 @@
## Rails 4.0.0 (unreleased) ##
+* `BestStandardsSupport` middleware now appends it's `X-UA-Compatible` value to app's
+ returned value if any. Fix #8086
+
+ *Nikita Afanasenko*
+
* `date_select` helper accepts `with_css_classes: true` to add css classes similar with type
of generated select tags.
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8 actionpack/lib/action_dispatch/middleware/best_standards_support.rb
@@ -15,7 +15,13 @@ def initialize(app, type = true)
def call(env)
status, headers, body = @app.call(env)
- headers["X-UA-Compatible"] = @header
+
+ if headers["X-UA-Compatible"] && @header
+ headers["X-UA-Compatible"] << "," << @header.to_s
+ else
+ headers["X-UA-Compatible"] = @header
+ end
+
[status, headers, body]
end
end
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34 actionpack/test/dispatch/best_standards_support_test.rb
@@ -0,0 +1,34 @@
+require 'abstract_unit'
+
+class BestStandardsSupportTest < ActiveSupport::TestCase
+ def test_with_best_standards_support
+ _, headers, _ = app(true, {}).call({})
+ assert_equal "IE=Edge,chrome=1", headers["X-UA-Compatible"]
+ end
+
+ def test_with_builtin_best_standards_support
+ _, headers, _ = app(:builtin, {}).call({})
+ assert_equal "IE=Edge", headers["X-UA-Compatible"]
+ end
+
+ def test_without_best_standards_support
+ _, headers, _ = app(false, {}).call({})
+ assert_equal nil, headers["X-UA-Compatible"]
+ end
+
+ def test_appends_to_app_headers
+ app_headers = { "X-UA-Compatible" => "requiresActiveX=true" }
+ _, headers, _ = app(true, app_headers).call({})
+
+ expects = "requiresActiveX=true,IE=Edge,chrome=1"
+ assert_equal expects, headers["X-UA-Compatible"]
+ end
+
+ private
+
+ def app(type, headers)
+ app = proc { [200, headers, "response"] }
+ ActionDispatch::BestStandardsSupport.new(app, type)
+ end
+
+end

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