Override the $serverName after the server object initialized

src/http-server/src/Server.php

@@ -119,4 +119,18 @@ class Server implements OnRequestInterface, MiddlewareInitializerInterface
         Context::set(ResponseInterface::class, $psr7Response = new Psr7Response($response));
         return [$psr7Request, $psr7Response];
     }
+
+    public function getServerName(): string
+    {
+        return $this->serverName;
+    }
+
+    /**
+     * @return $this
+     */
+    public function setServerName(string $serverName)
+    {
+        $this->serverName = $serverName;
+        return $this;
+    }
 }

src/server/src/Server.php

@@ -187,6 +187,10 @@ class Server implements ServerInterface
 
                 $this->onRequestCallbacks[$className] = $serverName;
                 $class = $this->container->get($className);
+                if (method_exists($class, 'setServerName')) {
+                    // Override the server name.
+                    $class->setServerName($serverName);
+                }
                 if ($class instanceof MiddlewareInitializerInterface) {
                     $class->initCoreMiddleware($serverName);
                 }