Cancel returns user to node preview

It's module behavior due to the redirect back to the HTTP referer, when there is no form_state redirect, destination parameter or entity edit form. When you go back from preview page, HTTP referer is set to preview page.
I agree it's unexpected behavior and should be considered as a bug.
I think we should keep initial HTTP referer when entity is created and redirect user there.
I've prepared patch which implement it. It was quite hard to store this information in tempstore.private with unique key as entity uuid change when node save submit is pressed and HTTP referer is not expected one anymore.

Amazing, patch is working flawlessly on our site. Thank you @ad0z !

+++ b/cancel_button.module
@@ -131,7 +131,13 @@ function cancel_button_form_alter(&$form, FormStateInterface $form_state) {
+        $uuid = $form_state->get('form_display') ? $form_state->get('form_display')->uuid() : NULL;

Can we add some code comments about what this is doing and what it is protecting us against? This is pretty dense code and some explanation will go a long way to help future selves know what it is doing.

I am working on this.

@heddn I checked this issue and provided patch is also, but I am getting same issue on content add form. I tested in Drupal 11.0.9.
I followed following steps:
1. Enabled module and added redirect for node form.
2. When I am going to add article, on add article node form I get content listing page URL on the cancel button. (/node/add/article)
3. After filling out the form go to the preview page and get back, this cancel button URL is changed to preview page URL.
Can you please suggest here what will be the correct URL at this time? It will be the (/node/add/article) or the URL that I set on configurations.
cc @Maintainers