Is there a way for a window to close itself?

Question

I am trying to make a website login page that has a button at the top that closes the page, but when I try to use window.close(), self.close() or the close() functions it gives me the error:

Scripts may close only the windows that were opened by them.

I have tried searching google but there seems to be no answers on the internet. I am testing the file using chrome.

I wrote this javascript:

<script>
        function closeTab() {
            window.close()
        }
    </script>

And this HTML for the image im trying to make as a close button:

<img onClick="closeTab()" src="image_source.svg" alt="Close Button">

Click here to see the error in the console.

Any help would be greatly appreciated, Thanks.