[arendtio]

Actually, I have spend more time on some 'real' sign up pages...

At least this time, I was constantly laughing about the somewhat absurd combinations. But I am missing some of the harder parts, like forms not showing because they are only loaded when you disable your ad-blocker or forms working in specific browser versions only. However, that would probably make it too hard/realistic.

I love it!

PS: Just to give an example: The login form for the German Vorwerk website does not show in Firefox https://www.vorwerk.com/de/de/s/shop/login and when you opt to register, the button just disappears, but nothing else happens... And yes, you need that form to actually buy products.

[tethys]

That Vorwerk form works fine for me in Firefox (Nightly, with uBlock Origin).

[arendtio]

Sounds interesting and indeed, when I take a fresh profile, the website loads just fine. So I suppose some one of my settings or some extension causes the issue.

Thanks for the hint.

Edit: I don't quite get it yet. Even starting my default profile in safe-mode (disables all extensions and themes), the page doesn't work.

The dev console shows this error:

  Failed to execute ‘postMessage’ on ‘DOMWindow’: The target origin provided (‘https://account.vorwerk.com’) does not match the recipient window’s origin (‘https://www.vorwerk.com’).

So I am pretty sure it must be some kind of configuration that is causing the issue, but so far I didn't find the related option in about:config