Simply not able to make it working

[GCorbel]

Hi,

I simply copy/pasted this code :

<script src="https://walkhub.net/assets/client.js" defer></script>
<script src="https://walkhub.net/assets/embed.js" defer></script>
<a class="walkthroughbutton" data-origin="https://walkhub.net/" data-position="bottom-right" data-search="http://localhost:4200" href="https://walkhub.net/"></a>
<a class="walkthroughbutton" data-origin="https://walkhub.net/" data-position="bottom-right" href="https://walkhub.net/"></a>

app.js?f6ccd46…:10 Failed to execute 'postMessage' on 'DOMWindow': The target origin provided ('https://walkhub.net') does not match the recipient window's origin ('http://localhost:4200').value @ app.js?f6ccd46…:10value @ app.js?f6ccd46…:10value @ app.js?f6ccd46…:10value @ app.js?f6ccd46…:10r @ app.js?f6ccd46…:10(anonymous function) @ app.js?f6ccd46…:10
app.js?f6ccd46…:10 Failed to execute 'postMessage' on 'DOMWindow': The target origin provided ('https://walkhub.net') does not match the recipient window's origin ('http://localhost:4200').value @ app.js?f6ccd46…:10(anonymous function) @ app.js?f6ccd46…:10value @ app.js?f6ccd46…:10value @ app.js?f6ccd46…:10value @ app.js?f6ccd46…:10r @ app.js?f6ccd46…:10(anonymous function) @ app.js?f6ccd46…:10
app.js?f6ccd46…:10 Failed to execute 'postMessage' on 'DOMWindow': The target origin provided ('http://next.walkhub.net') does not match the recipient window's origin ('http://localhost:4200').value @ app.js?f6ccd46…:10(anonymous function) @ app.js?f6ccd46…:10value @ app.js?f6ccd46…:10value @ app.js?f6ccd46…:10value @ app.js?f6ccd46…:10r @ app.js?f6ccd46…:10(anonymous function) @ app.js?f6ccd46…:10
app.js?f6ccd46…:15 POST https://walkhub.net/api/siteinfo 502 ()e.exports @ app.js?f6ccd46…:15(anonymous function) @ app.js?f6ccd46…:17e.exports @ app.js?f6ccd46…:17
undefined:1 Uncaught (in promise) Object {data: Object, status: 502, statusText: "", headers: Object, config: Object}
app.js?f6ccd46…:10 Failed to execute 'postMessage' on 'DOMWindow': The target origin provided ('https://walkhub.net') does not match the recipient window's origin ('http://localhost:4200').value @ app.js?f6ccd46…:10value @ app.js?f6ccd46…:10value @ app.js?f6ccd46…:10value @ app.js?f6ccd46…:10r @ app.js?f6ccd46…:10(anonymous function) @ app.js?f6ccd46…:10
app.js?f6ccd46…:10 Failed to execute 'postMessage' on 'DOMWindow': The target origin provided ('https://walkhub.net') does not match the recipient window's origin ('http://localhost:4200').value @ app.js?f6ccd46…:10(anonymous function) @ app.js?f6ccd46…:10value @ app.js?f6ccd46…:10value @ app.js?f6ccd46…:10value @ app.js?f6ccd46…:10r @ app.js?f6ccd46…:10(anonymous function) @ app.js?f6ccd46…:10
app.js?f6ccd46…:10 Failed to execute 'postMessage' on 'DOMWindow': The target origin provided ('http://next.walkhub.net') does not match the recipient window's origin ('http://localhost:4200').

I tries to change url in links but it doesn't work.

What can I do ?