yield and Sendmessage from web browser

Unity Engine
1

Hi all
I got a strange issue…
I got 2 functions in gameobject script:

	void A(String iTextureName)
	{
		Debug.Log("A hit");
		m_CurrentUploadedTexture = iTextureName;
		B();
		Debug.Log("A after B call");
	}
	
	IEnumerator B()
	{
		
		Debug.Log("B");
		String url = "http://www.mywebsite.com/test/" + m_CurrentUploadedTexture;
		WWW www = new WWW(url);
                yield return www;
        	m_LastTouched.renderer.material.mainTexture = www.texture;
	}

A is called using a sendmessage in a web page javascript BUT B is never called…
I can not see “B” log message in Player.log.
I use a Unity 3.1.0f4 on a mac.

Am I doing something stupid or wrong ?

thx for your help guys…

2 
void A(String iTextureName)
	{
		Debug.Log("A hit");
		m_CurrentUploadedTexture = iTextureName;
		StartCoroutine(B());
		Debug.Log("A after B call");
	}

does not work either…
I do not understand…

3

damn Chrome cache!!!
works great with StartCoRoutine