diff options
| -rw-r--r-- | guides/source/upgrading_ruby_on_rails.md | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/guides/source/upgrading_ruby_on_rails.md b/guides/source/upgrading_ruby_on_rails.md index 2e1f7118e1..950290d106 100644 --- a/guides/source/upgrading_ruby_on_rails.md +++ b/guides/source/upgrading_ruby_on_rails.md @@ -116,6 +116,9 @@ Also check your environment settings for `config.action_dispatch.best_standards_ * In Rails 4.0, a rescuable exception `ActionController::UnknownFormat` is raised when Rails doesn't know what to do with the request format, rather than responding with a head :not_acceptable (406). +* In Rails 4.0, `SCRIPT_NAME` is properly handled for mounted apps and engines. One caveat of the fix is that you should *not* set +`default_url_options[:script_name]` explicitly if your server already passes correct `SCRIPT_NAME` to rack env. + ### Active Support Rails 4.0 removes the `j` alias for `ERB::Util#json_escape` since `j` is already used for `ActionView::Helpers::JavaScriptHelper#escape_javascript`. |