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How to enable and configure HTTP/2 in Symfony?

To enable and configure HTTP/2 in Symfony, you can follow these steps:

  1. Make sure your web server supports HTTP/2. Most modern web servers like Apache and Nginx support HTTP/2 out of the box.

  2. Enable HTTP/2 in your web server configuration. For example, in Apache, you can add the following line to your virtual host configuration:

Protocols h2 http/1.1
  1. Configure Symfony to use the HTTP/2 protocol. You can do this by setting the http_version parameter in your config/packages/framework.yaml file:
framework: http_version: '2.0'
  1. Test your Symfony application to ensure that it is now serving requests using HTTP/2. You can use tools like Google Chrome DevTools or online HTTP/2 testing tools to verify this.

By following these steps, you should be able to enable and configure HTTP/2 in your Symfony application.