diff --git a/src/Symfony/Component/HttpFoundation/Response.php b/src/Symfony/Component/HttpFoundation/Response.php
index a9cea09b39f05..e6b913f416508 100644
--- a/src/Symfony/Component/HttpFoundation/Response.php
+++ b/src/Symfony/Component/HttpFoundation/Response.php
@@ -311,7 +311,7 @@ public function prepare(Request $request)
}
// Check if we need to send extra expire info headers
- if ('1.0' == $this->getProtocolVersion() && str_contains($headers->get('Cache-Control'), 'no-cache')) {
+ if ('1.0' == $this->getProtocolVersion() && str_contains($headers->get('Cache-Control', ''), 'no-cache')) {
$headers->set('pragma', 'no-cache');
$headers->set('expires', -1);
}
diff --git a/src/Symfony/Component/HttpFoundation/Tests/ResponseTest.php b/src/Symfony/Component/HttpFoundation/Tests/ResponseTest.php
index f26302eef1120..d4b8812d99c21 100644
--- a/src/Symfony/Component/HttpFoundation/Tests/ResponseTest.php
+++ b/src/Symfony/Component/HttpFoundation/Tests/ResponseTest.php
@@ -578,6 +578,12 @@ public function testPrepareSetsPragmaOnHttp10Only()
$this->assertEquals('no-cache', $response->headers->get('pragma'));
$this->assertEquals('-1', $response->headers->get('expires'));
+ $response = new Response('foo');
+ $response->headers->remove('cache-control');
+ $response->prepare($request);
+ $this->assertFalse($response->headers->has('pragma'));
+ $this->assertFalse($response->headers->has('expires'));
+
$request->server->set('SERVER_PROTOCOL', 'HTTP/1.1');
$response = new Response('foo');
$response->prepare($request);
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