We are hiding the admin bar in the site preview page to avoid confusion for users, but it's currently leaving an extra black bar in the landscape orientation. I think this could be frustrating experience for a new user. I am not yet sure whether this needs to be addressed in the backend or in the client, so I am opening an issue here for now.

This turned out to be a theme issue as I don't experience it if I use a different theme in the preview. Of course that's normally not possible, since the sites are created with the same theme, at least for now, but I thought I'd still document it in case it's helpful.
We are looking into using the hide_masterbar=true parameter instead of using this hack which will fix this issue. Unfortunately that currently only works for the admin bar (if logged in) and doesn't hide the get started bar (if logged out), so we can't make that change yet.
I've these changes ready in the issue/site-preview-hide-masterbar and waiting to see what we'll do on the server side.
There is a theme specific pseudo-class that is added here on a media query for larger screens. This is why the problem is only present on tablets.
@media screen and (min-width: 48.9375em)
body:not(.custom-background-image).admin-bar:before {
top: 32px;
}
This is unique to this theme though.
Thanks @SylvesterWilmott! @kwonye mentioned that this theme will not actually be used in the new sites, so we might not need to do anything about it. Let's wait for the server side changes for now.
Great news, @oguzkocer! Just tested and all sites created with our new Site Creation do not have the black bar on top. I believe we can close this issue out.
Sounds good, thanks @kwonye!
Nevermind so sorry, Didn't have it in landscape mode properly. It definitely shows. One way iOS solves this is by limiting the width to 800 OR we simply show the masterbar.
@oguzkocer @SylvesterWilmott do either of you have an opinion on whether we should do this?
I don't think we should show the Get Started bar. Even in another place it'd be confusing, but telling the users that they can start creating sites just after they created a site is extremely confusing if you ask me. Not that they can tap on the bar and go anywhere from it, but still.
If it's present in the current themes, I think we should try to do something about it. The best solution I can think of is to have hide_getstartedbar=true parameter in the url similar to hide_masterbar=true. If that's not possible, or it'd implemented in the far future, I am open to any css hack. Regardless of which hack we use, it's going to be unpleasant, so no strong opinions on that.
If it's present in the current themes, I think we should try to do something about it. The best solution I can think of is to have
hide_getstartedbar=trueparameter in the url similar tohide_masterbar=true.
This options definitely sounds like the best solution! Using a css hack sounds a bit risky to me, especially since the API can start returning a different theme in the future and it might break old versions of the app. Tbh for me it's either a backend fix or do nothing about it.
Moving to the Site Creation Improvements project, to wrap up the original project board.
I'm trying to understand this issue but even in the initial image in this thread I'm not sure what the extra black bar is.
The site above looks consistent with what I'm seeing in my iPhone, in my Android phone and in Safari (while logged out).
@shiki - Can I ask you to double check what I'm seeing and let me know if you find anything that's off? Right now I'm trying to assess whether it makes sense for us to focus on this, or if it's fine and consistent across platforms.
@diegoreymendez That black bar is Android's taskbar that is visible by default for all apps. I was able to reproduce this on a tablet, Pixel C, Android 8.0. I was not able to reproduce this on a phone, PIxel 3, Android 9.0.
I cannot reproduce the black bar on both tablet and phone. I think we can close this.
Actually, scratch that. I was talking about a different thing. 馃う鈥嶁檪 Updated my comment above. 鈽濓笍
This is the blackbar this issue is about (I used the image from the description).

I have been able to reproduce the issue, even though I still think it should be fixed either on the backend or we should consider closing it with "Won't fix - minor issue".

cc @diegoreymendez @shiki
Ohh, I actually just noticed I can't reproduce the issue with "blog" segment, but I can reproduce it with "business" segment. But my opinion remains the same.
@malinajirka Good find. I was only using Blog at that time. I agree that this should be fixed in the backend.
Closing as won't fix for now. It's not great to have that bar there, but it's an issue with the theme and not really in the Apps.