3 files changed, 15 insertions, 1 deletions
diff --git a/actionpack/lib/action_controller/api.rb b/actionpack/lib/action_controller/api.rb
index 0d1af0d0bd..94698df730 100644
--- a/actionpack/lib/action_controller/api.rb
+++ b/actionpack/lib/action_controller/api.rb
@@ -141,6 +141,7 @@ module ActionController
       include mod
     end
 
+    ActiveSupport.run_load_hooks(:action_controller_api, self)
     ActiveSupport.run_load_hooks(:action_controller, self)
   end
 end
diff --git a/actionpack/lib/action_controller/base.rb b/actionpack/lib/action_controller/base.rb
index b420e00c78..8c2b111f89 100644
--- a/actionpack/lib/action_controller/base.rb
+++ b/actionpack/lib/action_controller/base.rb
@@ -267,6 +267,7 @@ module ActionController
       end
     end
 
+    ActiveSupport.run_load_hooks(:action_controller_base, self)
     ActiveSupport.run_load_hooks(:action_controller, self)
   end
 end
diff --git a/activesupport/CHANGELOG.md b/activesupport/CHANGELOG.md
index 1adc473e1d..17677d057b 100644
--- a/activesupport/CHANGELOG.md
+++ b/activesupport/CHANGELOG.md
@@ -1,7 +1,19 @@
+*  Add `action_controller_api` and `action_controller_base` load hooks to be called in `ActiveSupport.on_load`
+
+    `ActionController::Base` and `ActionController::API` have differing implementations. This means that
+    the one umbrella hook `action_controller` is not able to address certain situations where a method
+    may not exist in a certain implementation.
+
+    This is fixed by adding two new hooks so you can target `ActionController::Base` vs `ActionController::API`
+
+    Fixes #27013.
+
+    *Julian Nadeau*
+
 *   Add `fetch_values` for `HashWithIndifferentAccess`
 
     The method was originally added to `Hash` in Ruby 2.3.0.
 
     *Josh Pencheon*
 
-Please check [5-1-stable](https://github.com/rails/rails/blob/5-1-stable/activesupport/CHANGELOG.md) for previous changes.
+Please check [5-1-stable](https://github.com/rails/rails/blob/5-1-stable/activesupport/CHANGELOG.md) for previous changes.
+\ No newline at end of file