[Asset] Fix JsonManifest when there is no dependency on HttpClient

src/Symfony/Bundle/FrameworkBundle/Resources/config/assets.php

@@ -77,7 +77,7 @@ return static function (ContainerConfigurator $container) {
             ->abstract()
             ->args([
                 abstract_arg('manifest path'),
-                service('http_client'),
+                service('http_client')->nullOnInvalid(),
             ])
 
         ->set('assets.remote_json_manifest_version_strategy', RemoteJsonManifestVersionStrategy::class)

src/Symfony/Component/Asset/Tests/VersionStrategy/JsonManifestVersionStrategyTest.php

@@ -61,6 +61,14 @@ class JsonManifestVersionStrategyTest extends TestCase
         $strategy->getVersion('main.js');
     }
 
+    public function testRemoteManifestFileWithoutHttpClient()
+    {
+        $this->expectException(\LogicException::class);
+        $this->expectExceptionMessage(sprintf('The "%s" class needs an HTTP client to use a remote manifest. Try running "composer require symfony/http-client".', JsonManifestVersionStrategy::class));
+
+        new JsonManifestVersionStrategy('https://cdn.example.com/manifest.json');
+    }
+
     public function provideValidStrategies()
     {
         yield from $this->provideStrategies('manifest-valid.json');

src/Symfony/Component/Asset/VersionStrategy/JsonManifestVersionStrategy.php

@@ -38,6 +38,10 @@ class JsonManifestVersionStrategy implements VersionStrategyInterface
     {
         $this->manifestPath = $manifestPath;
         $this->httpClient = $httpClient;
+
+        if (null === $this->httpClient && 0 === strpos(parse_url($this->manifestPath, \PHP_URL_SCHEME), 'http')) {
+            throw new \LogicException(sprintf('The "%s" class needs an HTTP client to use a remote manifest. Try running "composer require symfony/http-client".', self::class));
+        }
     }
 
     /**