The JSON API media type should only work wih a JSON API handler

Since the media type 'application/vnd.api+json' is a spec,
it is inappropriate to handle it with the JSON renderer.

This PR removes support for a JSON API media type.

I would recommend the media type be registered on its own as `jsonapi`
when a jsonapi Renderer and deserializer (Http::Parameters::DEFAULT_PARSERS) are added.

Is related to work in https://github.com/rails/rails/pull/21496

1 files changed, 2 insertions, 9 deletions

diff --git a/actionpack/test/dispatch/request/json_params_parsing_test.rb b/actionpack/test/dispatch/request/json_params_parsing_test.rb
index a3992ad008..71ad31ee15 100644
--- a/actionpack/test/dispatch/request/json_params_parsing_test.rb
+++ b/actionpack/test/dispatch/request/json_params_parsing_test.rb
@@ -37,9 +37,9 @@ class JsonParamsParsingTest < ActionDispatch::IntegrationTest
     )
   end
 
-  test "parses json params for application/vnd.api+json" do
+  test "does not parses unregistered media types such as application/vnd.api+json" do
     assert_parses(
-      {"person" => {"name" => "David"}},
+      {},
       "{\"person\": {\"name\": \"David\"}}", { 'CONTENT_TYPE' => 'application/vnd.api+json' }
     )
   end
@@ -143,13 +143,6 @@ class RootLessJSONParamsParsingTest < ActionDispatch::IntegrationTest
     )
   end
 
-  test "parses json params for application/vnd.api+json" do
-    assert_parses(
-      {"user" => {"username" => "sikachu"}, "username" => "sikachu"},
-      "{\"username\": \"sikachu\"}", { 'CONTENT_TYPE' => 'application/vnd.api+json' }
-    )
-  end
-
   test "parses json with non-object JSON content" do
     assert_parses(
       {"user" => {"_json" => "string content" }, "_json" => "string content" },