Observable from UnityWebRequest calls OnComplete although status is still InProgress

[achimmihca]

I do the following to observe a UnityWebRequest:

UnityWebRequest unityWebRequest = UnityWebRequest.Get(uri);

void OnNext()
{
    Debug.Log($"{unityWebRequest.method} '{unityWebRequest.uri}' has updated. Status: {unityWebRequest.result}, response code: {unityWebRequest.responseCode}");
}

void OnError
{
    Debug.LogError($"{unityWebRequest.method} '{unityWebRequest.uri}' has failed. Status: {unityWebRequest.result}, response code: {unityWebRequest.responseCode}, error message: {ex.Message}");
    Debug.LogException(ex);
}

void OnComplete()
{
    Debug.Log($"{unityWebRequest.method} '{unityWebRequest.uri}' has completed. Status: {unityWebRequest.result}, response code: {unityWebRequest.responseCode}, response body: {unityWebRequest.downloadHandler.text}");
}

unityWebRequest
    .SendWebRequest()
    .AsAsyncOperationObservable()
    .Subscribe(OnSucess, OnError, OnComplete);

My problem is that sometimes (not always) the OnComplete method is called although unityWebRequest.result is still InProgress, the unityWebRequest.downloadHandler.text is empty, and unityWebRequest.isDone is false.
Thus, OnComplete seems to be called prematurely sometimes.

Is this a bug?
Or do I have to create the Observable from the UnityWebRequest differently somehow?

[achimmihca]

I noticed that there are

• dedicated repos to get an Observable from UnityWebRequest: https://github.com/upm-packages/UniRx-ObservableUnityWebRequest
• issues to create an Observable from UnityWebRequest: UnityWebRequest AsObservable #101

I think these would be obsolete if the above example would work as expected (i.e. OnComplete was not called prematurely)