Unity Web Request in headless mode does not complete

Unity Engine
1

When making a request using UnityWebRequest in headless mode, the request never completes. The same code using WWW finishes fine. Both sets of code work in the editor.

Anybody ever see this before? Am I implementing UnityWebRequest incorrectly?

Please see attached files and run the following scripts

Run WebRequest in batchmode (see log file for output)
"C:\Program Files\Unity\Editor\Unity.exe" -quit -batchmode -nographics -silent-crashes -logFile %cd%\headlessTestWebRequest.log -projectPath %cd% -executemethod HeadlessModeTest.RunTestWebRequest

Run WWW in batchmode (see log file for output)
"C:\Program Files\Unity\Editor\Unity.exe" -quit -batchmode -nographics -silent-crashes -logFile %cd%\headlessTestWWW.log -projectPath %cd% -executemethod HeadlessModeTest.RunTestWWW

Using UnityWebRequest

IEnumerator GetTextWebRequest()
    {
        Debug.Log("********** Sending request WebRequest");
        using (UnityWebRequest www = UnityWebRequest.Get("https://httpbin.org/get"))
        {
            www.SendWebRequest();
            while(!www.isDone)
            {
#if UNITY_EDITOR
                if (!UnityEditorInternal.InternalEditorUtility.inBatchMode)
                    yield return null;
#else
                yield return null;
#endif
            }
            if (www.isNetworkError || www.isHttpError)
            {
                Debug.Log(www.error);
            }
            else
            {
                Debug.Log("********** Response received WebRequest: " + www.downloadHandler.text);
            }
        }
    }

Using WWW

IEnumerator GetTextWWW()
    {
        Debug.Log("********** Sending request WWW");

        using (WWW www = new WWW("https://httpbin.org/get"))
        {
            while(!www.isDone)
            {
#if UNITY_EDITOR
                if (!UnityEditorInternal.InternalEditorUtility.inBatchMode)
                    yield return null;
#else
                yield return null;
#endif
            }

            if (!string.IsNullOrEmpty(www.error))
            {
                Debug.Log(www.error);
            }
            else
            {
                Debug.Log("********** Response received WWW: " + www.text);
            }
        }
    }

3485491–277386–HeadlessModeTest.zip (1.93 MB)

2

This may have been an issue with the endpoint I was testing. I am testing with a new endpoint and it seems to work.

3488195–277720–HeadlessModeTest.zip (1.97 MB)