We are not able to replicate that behaviour in any of the modern browsers we have tested so far
That attribute you have highlighted was added last year
You might be using an older/outdated browser. Do you mind sharing the version of browser you are using? And can you also try to open / access it via more modern browser to confirm that it is working as per normal on a new one?
On the other hand, can you help create a ticket for the second one so we can address it from there. That looks to be something that can be adjusted as it seems to be giving different behaviour depending on the version of browser.