[HttpClient] Don't throw InvalidArgumentException on bad Location header

Author: nicolas-grekas

Test/Fixtures/web/index.php

@@ -55,6 +55,10 @@
         header('Location: http://foo.example.', true, 301);
         break;
 
+    case '/301/invalid':
+        header('Location: //?foo=bar', true, 301);
+        break;
+
     case '/302':
         if (!isset($vars['HTTP_AUTHORIZATION'])) {
             header('Location: http://localhost:8057/', true, 302);

Test/HttpClientTestCase.php

@@ -259,6 +259,20 @@ public function testRedirects()
         $this->assertSame($expected, $filteredHeaders);
     }
 
+    public function testInvalidRedirect()
+    {
+        $client = $this->getHttpClient(__FUNCTION__);
+        $response = $client->request('GET', 'http://localhost:8057/301/invalid');
+
+        $this->assertSame(301, $response->getStatusCode());
+        $this->assertSame(['//?foo=bar'], $response->getHeaders(false)['location']);
+        $this->assertSame(0, $response->getInfo('redirect_count'));
+        $this->assertNull($response->getInfo('redirect_url'));
+
+        $this->expectException(RedirectionExceptionInterface::class);
+        $response->getHeaders();
+    }
+
     public function testRelativeRedirects()
     {
         $client = $this->getHttpClient(__FUNCTION__);