Button to call Application.OpenURL not working

Question

I have a public method

public void patreononclick(){
   Application.OpenURL("http://www.patreon.com/HubakaGs");
}

This is supposed to open my Patreon page when a button is tapped.

But when I tap the button in the built application, nothing happens.

I have assigned the function to the On Click() section of the Button (Script).

I am building the game for Android and I use Unity 2017.1.0p4 Personal.

How can I make the button function properly?

Update:

I changed the function to

public void patreononclick(){
    Debug.Log ("the game should open patreon");
    Application.OpenURL("http://www.patreon.com/HubakaGs");
}

But when the button is clicked, there is no message in the console.

Answer 1

After hours of pulling hair, I finally noticed that this

was set to off, so I set it to Editor And Runtime, and it worked perfectly. I can even open the link from the editor trough a browser.

Answer 2

Here are four things to check when your UI button click event is not firing…

1. Make sure your canvas has a Graphics Raycaster attached.
2. Your Image component's Raycast Target must be enabled.
3. Make sure there are no overlapping UI elements.
4. Make sure to have a gameobject with the EventSystem component in the scene.