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-rw-r--r--actionpack/lib/action_dispatch/routing/mapper.rb4
1 files changed, 4 insertions, 0 deletions
diff --git a/actionpack/lib/action_dispatch/routing/mapper.rb b/actionpack/lib/action_dispatch/routing/mapper.rb
index 869fd624db..db9c993590 100644
--- a/actionpack/lib/action_dispatch/routing/mapper.rb
+++ b/actionpack/lib/action_dispatch/routing/mapper.rb
@@ -319,6 +319,10 @@ module ActionDispatch
#
# For options, see +match+, as +root+ uses it internally.
#
+ # You can also pass a string which will expand
+ #
+ # root 'pages#main'
+ #
# You should put the root route at the top of <tt>config/routes.rb</tt>,
# because this means it will be matched first. As this is the most popular route
# of most Rails applications, this is beneficial.