[Bug]: Mobile overlay issue on .md text files on all major browsers

[AlphaHasher]

⚠️ This issue respects the following points: ⚠️

• This is a bug, not a question or a configuration/webserver/proxy issue.
• This issue is not already reported on Github OR Nextcloud Community Forum (I've searched it).
• Nextcloud Server is up to date. See Maintenance and Release Schedule for supported versions.
• I agree to follow Nextcloud's Code of Conduct.

Bug description

The top few lines of .md text files are block by the headers when viewing inside mobile browsers.

When opening on full screen mode the missing lines come back

Steps to reproduce

1. Create .md text file
2. Add an content (like text)
3. Open the file on mobile in a browser (like with a share link)
4. Top line is blocked by the header

Expected behavior

You can see all the contents

Nextcloud Server version

33

Operating system

Debian/Ubuntu

PHP engine version

None

Web server

None

Database engine version

None

Is this bug present after an update or on a fresh install?

None

Are you using the Nextcloud Server Encryption module?

None

What user-backends are you using?

• Default user-backend (database)
• LDAP/ Active Directory
• SSO - SAML
• Other

Configuration report

List of activated Apps

Nextcloud Signing status

Nextcloud Logs

Additional info

I have recreated this on the following mobile browsers:

1. Firefox
2. Chrome
3. Safari

[mejo-]

Thanks for the report @AlphaHasher. Which exact Nextcloud version do you use? I'm unable to reproduce this issue on latest Nextcloud 33.0.5.

What I did:

1. created a new Text document and filled it with some content
2. shared that Text document with a read-only public share
3. opened the share link in a private tab:

[silverkszlo]

Hello @mejo- and @AlphaHasher , I can reproduce the issue:

[AlphaHasher]

@mejo- I am on 33.0.3

[mejo-]

@AlphaHasher thanks! I was only testing with mobile view (in developer tools) in a desktop browser, but not on a real smartphone. Seems like this issue is only reproducible when really using a mobile device.