Add content type checks to api/v2 request specs (#31983)

spec/requests/api/web/embeds_spec.rb

@@ -18,6 +18,8 @@ RSpec.describe '/api/web/embed' do
           subject
 
           expect(response).to have_http_status(200)
+          expect(response.content_type)
+            .to start_with('application/json')
           expect(response.parsed_body[:html]).to be_present
         end
       end
@@ -29,6 +31,8 @@ RSpec.describe '/api/web/embed' do
           subject
 
           expect(response).to have_http_status(404)
+          expect(response.content_type)
+            .to start_with('application/json')
         end
       end
     end
@@ -42,6 +46,8 @@ RSpec.describe '/api/web/embed' do
         subject
 
         expect(response).to have_http_status(404)
+        expect(response.content_type)
+          .to start_with('application/json')
       end
     end
 
@@ -52,6 +58,8 @@ RSpec.describe '/api/web/embed' do
         subject
 
         expect(response).to have_http_status(404)
+        expect(response.content_type)
+          .to start_with('application/json')
       end
     end
   end
@@ -71,6 +79,8 @@ RSpec.describe '/api/web/embed' do
           subject
 
           expect(response).to have_http_status(200)
+          expect(response.content_type)
+            .to start_with('application/json')
           expect(response.parsed_body[:html]).to be_present
         end
 
@@ -83,6 +93,8 @@ RSpec.describe '/api/web/embed' do
             subject
 
             expect(response).to have_http_status(404)
+            expect(response.content_type)
+              .to start_with('application/json')
           end
         end
       end
@@ -98,6 +110,8 @@ RSpec.describe '/api/web/embed' do
           subject
 
           expect(response).to have_http_status(404)
+          expect(response.content_type)
+            .to start_with('application/json')
         end
       end
     end
@@ -123,6 +137,8 @@ RSpec.describe '/api/web/embed' do
           subject
 
           expect(response).to have_http_status(404)
+          expect(response.content_type)
+            .to start_with('application/json')
         end
       end
 
@@ -133,6 +149,8 @@ RSpec.describe '/api/web/embed' do
           subject
 
           expect(response).to have_http_status(200)
+          expect(response.content_type)
+            .to start_with('application/json')
           expect(response.parsed_body[:html]).to be_present
         end
       end
@@ -146,6 +164,8 @@ RSpec.describe '/api/web/embed' do
           subject
 
           expect(response).to have_http_status(404)
+          expect(response.content_type)
+            .to start_with('application/json')
         end
       end
 
@@ -156,6 +176,8 @@ RSpec.describe '/api/web/embed' do
           subject
 
           expect(response).to have_http_status(404)
+          expect(response.content_type)
+            .to start_with('application/json')
         end
       end
     end
@@ -167,6 +189,8 @@ RSpec.describe '/api/web/embed' do
         subject
 
         expect(response).to have_http_status(404)
+        expect(response.content_type)
+          .to start_with('application/json')
       end
     end
   end