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Don't send default cache header for 301 redirects #18220

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Merged
merged 1 commit into from
Jun 15, 2016
Merged

Don't send default cache header for 301 redirects #18220

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4 changes: 4 additions & 0 deletions src/Symfony/Component/HttpFoundation/RedirectResponse.php
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Original file line number Diff line number Diff line change
Expand Up @@ -41,6 +41,10 @@ public function __construct($url, $status = 302, $headers = array())
if (!$this->isRedirect()) {
throw new \InvalidArgumentException(sprintf('The HTTP status code is not a redirect ("%s" given).', $status));
}

if (301 == $status && !array_key_exists('cache-control', $headers)) {
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I'm not sure if it's correct place for this code. Looking forward for review

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I would instead move this into the main Response class just before sending the headers to the client.

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@fabpot, in Response class headers already computed and contains unnecessary 'no-cache' directive. We can't check wether is was set automatically or explicitly by user. see \Symfony\Component\HttpFoundation\ResponseHeaderBag::computeCacheControlValue

$this->headers->remove('cache-control');
}
}

/**
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13 changes: 13 additions & 0 deletions src/Symfony/Component/HttpFoundation/Tests/RedirectResponseTest.php
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Expand Up @@ -80,4 +80,17 @@ public function testCreate()
$this->assertInstanceOf('Symfony\Component\HttpFoundation\RedirectResponse', $response);
$this->assertEquals(301, $response->getStatusCode());
}

public function testCacheHeaders()
{
$response = new RedirectResponse('foo.bar', 301);
$this->assertFalse($response->headers->hasCacheControlDirective('no-cache'));

$response = new RedirectResponse('foo.bar', 301, array('cache-control' => 'max-age=86400'));
$this->assertFalse($response->headers->hasCacheControlDirective('no-cache'));
$this->assertTrue($response->headers->hasCacheControlDirective('max-age'));

$response = new RedirectResponse('foo.bar', 302);
$this->assertTrue($response->headers->hasCacheControlDirective('no-cache'));
}
}