diff --git a/system/Test/FeatureTestTrait.php b/system/Test/FeatureTestTrait.php
index 0f2467ffd897..ffbc780c6bce 100644
--- a/system/Test/FeatureTestTrait.php
+++ b/system/Test/FeatureTestTrait.php
@@ -375,11 +375,11 @@ protected function populateGlobals(string $name, Request $request, ?array $param
 
         $request->setGlobal('get', $get);
 
-        if ($name === 'get') {
+        if ($name === 'get' || ($name === 'post' && in_array($this->bodyFormat, ['json', 'xml'], true))) {
             $request->setGlobal('request', $request->fetchGlobal('get'));
         }
 
-        if ($name === 'post') {
+        if ($name === 'post' && ! in_array($this->bodyFormat, ['json', 'xml'], true)) {
             $request->setGlobal($name, $params);
             $request->setGlobal(
                 'request',
diff --git a/tests/system/Test/FeatureTestTraitTest.php b/tests/system/Test/FeatureTestTraitTest.php
index be3d590bd15a..cd1c845342f1 100644
--- a/tests/system/Test/FeatureTestTraitTest.php
+++ b/tests/system/Test/FeatureTestTraitTest.php
@@ -557,7 +557,7 @@ public function testCallPutWithJsonRequestAndREQUEST(): void
         $this->assertStringContainsString('[]', $response->getBody());
     }
 
-    public function testCallWithJsonRequest(): void
+    public function testCallWithAssociativeJsonRequest(): void
     {
         $this->withRoutes([
             [
@@ -581,6 +581,26 @@ public function testCallWithJsonRequest(): void
         $response->assertJSONExact($data);
     }
 
+    public function testCallWithListJsonRequest(): void
+    {
+        $this->withRoutes([
+            [
+                'POST',
+                'home',
+                '\Tests\Support\Controllers\Popcorn::echoJson',
+            ],
+        ]);
+        $data = [
+            ['one' => 1, 'two' => 2],
+            ['one' => 2, 'two' => 2],
+        ];
+        $response = $this->withBodyFormat('json')
+            ->call(Method::POST, 'home', $data);
+
+        $response->assertOK();
+        $response->assertJSONExact($data);
+    }
+
     public function testSetupRequestBodyWithParams(): void
     {
         $request = $this->setupRequest('post', 'home');