Fullscreen behaviour is not consistent when changing pages

[mathbunnyru]

Describe the bug

When I open a page in fullscreen and then go to another page, it does different things in different browsers. I'm using the macOS operating system.

1. Vivaldi (Chromium based) exits the fullscreen mode (not expected).
2. Safari changes the page correctly, but pressing the "fullscreen" button again doesn't exit the fullscreen.

Reproduce the bug

1. Open https://jupyter-docker-stacks.readthedocs.io/en/latest/index.html
2. Press the "Fullscreen mode" button
3. On the left side, press any section

List your environment

I'm using freshly released sphinx-book-theme 1.0.0 and sphinx 6.1.3

[choldgraf]

Did this used to work on and old version and now has changed the behavior? I wonder if this is just browser-dependent since we are just using the browsers Fullscreen function.

[mathbunnyru]

The behaviour is the same with sphinx-book-theme==0.3.3.