3 files changed, 34 insertions, 3 deletions
diff --git a/activejob/lib/active_job/arguments.rb b/activejob/lib/active_job/arguments.rb
index ffc57dae84..fa58c50ed0 100644
--- a/activejob/lib/active_job/arguments.rb
+++ b/activejob/lib/active_job/arguments.rb
@@ -75,14 +75,14 @@ module ActiveJob
         when Array
           argument.map { |arg| serialize_argument(arg) }
         when ActiveSupport::HashWithIndifferentAccess
-          result = serialize_hash(argument)
-          result[WITH_INDIFFERENT_ACCESS_KEY] = serialize_argument(true)
-          result
+          serialize_indifferent_hash(argument)
         when Hash
           symbol_keys = argument.each_key.grep(Symbol).map(&:to_s)
           result = serialize_hash(argument)
           result[SYMBOL_KEYS_KEY] = symbol_keys
           result
+        when -> (arg) { arg.respond_to?(:permitted?) }
+          serialize_indifferent_hash(argument.to_h)
         else
           Serializers.serialize(argument)
         end
@@ -148,6 +148,12 @@ module ActiveJob
         end
       end
 
+      def serialize_indifferent_hash(indifferent_hash)
+        result = serialize_hash(indifferent_hash)
+        result[WITH_INDIFFERENT_ACCESS_KEY] = serialize_argument(true)
+        result
+      end
+
       def transform_symbol_keys(hash, symbol_keys)
         # NOTE: HashWithIndifferentAccess#transform_keys always
         # returns stringified keys with indifferent access
diff --git a/activejob/test/cases/argument_serialization_test.rb b/activejob/test/cases/argument_serialization_test.rb
index 8b2981926f..e4e14016d9 100644
--- a/activejob/test/cases/argument_serialization_test.rb
+++ b/activejob/test/cases/argument_serialization_test.rb
@@ -5,6 +5,7 @@ require "active_job/arguments"
 require "models/person"
 require "active_support/core_ext/hash/indifferent_access"
 require "jobs/kwargs_job"
+require "support/stubs/strong_parameters"
 
 class ArgumentSerializationTest < ActiveSupport::TestCase
   setup do
@@ -49,6 +50,15 @@ class ArgumentSerializationTest < ActiveSupport::TestCase
     assert_arguments_roundtrip([a: 1, "b" => 2])
   end
 
+  test "serialize a ActionController::Parameters" do
+    parameters = Parameters.new(a: 1)
+
+    assert_equal(
+      { "a" => 1, "_aj_hash_with_indifferent_access" => true },
+      ActiveJob::Arguments.serialize([parameters]).first
+    )
+  end
+
   test "serialize a hash" do
     symbol_key = { a: 1 }
     string_key = { "a" => 1 }
diff --git a/activejob/test/support/stubs/strong_parameters.rb b/activejob/test/support/stubs/strong_parameters.rb
new file mode 100644
index 0000000000..acba3a4504
--- /dev/null
+++ b/activejob/test/support/stubs/strong_parameters.rb
@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+class Parameters
+  def initialize(parameters = {})
+    @parameters = parameters.with_indifferent_access
+  end
+
+  def permitted?
+    true
+  end
+
+  def to_h
+    @parameters.to_h
+  end
+end