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Restore note about nested SCRIPT_NAME handling.

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commit 99775fd1612217aaba2f3580b4204c6b75c04249 1 parent b49a2a7
@jeremy jeremy authored
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  1. +2 −0  guides/source/upgrading_ruby_on_rails.md
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2  guides/source/upgrading_ruby_on_rails.md
@@ -145,6 +145,8 @@ Also check your environment settings for `config.action_dispatch.best_standards_
* In Rails 4.0, a generic `ActionDispatch::ParamsParser::ParseError` exception is raised when `ParamsParser` fails to parse request params. You will want to rescue this exception instead of the low-level `MultiJson::DecodeError`, for example.
+* In Rails 4.0, `SCRIPT_NAME` is properly nested when engines are mounted on an app that's served from a URL prefix. You no longer have to set `default_url_options[:script_name]` to work around overwritten URL prefixes.
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* Rails 4.0 deprecated `ActionController::Integration` in favor of `ActionDispatch::Integration`.
* Rails 4.0 deprecated `ActionController::IntegrationTest` in favor of `ActionDispatch::IntegrationTest`.
* Rails 4.0 deprecated `ActionController::PerformanceTest` in favor of `ActionDispatch::PerformanceTest`.
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