Unity Web Request in headless mode does not complete

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

Code (CSharp):

1. IEnumerator GetTextWebRequest()
2.     {
3.         Debug.Log("********** Sending request WebRequest");
4.         using (UnityWebRequest www = UnityWebRequest.Get("https://httpbin.org/get"))
5.         {
6.             www.SendWebRequest();
7.             while(!www.isDone)
8.             {
9. #if UNITY_EDITOR
10.                 if (!UnityEditorInternal.InternalEditorUtility.inBatchMode)
11.                     yield return null;
12. #else
13.                 yield return null;
14. #endif
15.             }
16.             if (www.isNetworkError || www.isHttpError)
17.             {
18.                 Debug.Log(www.error);
19.             }
20.             else
21.             {
22.                 Debug.Log("********** Response received WebRequest: " + www.downloadHandler.text);
23.             }
24.         }
25.     }

Using WWW

Code (CSharp):

1. IEnumerator GetTextWWW()
2.     {
3.         Debug.Log("********** Sending request WWW");
4.  
5.         using (WWW www = new WWW("https://httpbin.org/get"))
6.         {
7.             while(!www.isDone)
8.             {
9. #if UNITY_EDITOR
10.                 if (!UnityEditorInternal.InternalEditorUtility.inBatchMode)
11.                     yield return null;
12. #else
13.                 yield return null;
14. #endif
15.             }
16.  
17.             if (!string.IsNullOrEmpty(www.error))
18.             {
19.                 Debug.Log(www.error);
20.             }
21.             else
22.             {
23.                 Debug.Log("********** Response received WWW: " + www.text);
24.             }
25.         }
26.     }

 

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