UnityWebRequest.Dispose

Description

Signals that this [UnityWebRequest] is no longer being used, and should clean up any resources it is using.

You must call Dispose once you have finished using a [UnityWebRequest] object, regardless of whether the request succeeded or failed.

For safety, it is usually a best practice to employ the using statement to ensure that a [UnityWebRequest] is properly cleaned up in case of uncaught exceptions.

using UnityEngine;
using System.Collections;

public class MyExampleBehaviour : MonoBehaviour
{
    public IEnumerator Start()
    {
        using (UnityWebRequest request = UnityWebRequest.Get("http://my-website.com"))
        {
            yield return request.Send();
            Debug.Log("Server responded: " + request.downloadHandler.text);
        }
    }
}