Profile README badges render vertically when logged out or in Incognito mode

[AhmadJeddi]

🏷️ Discussion Type

Bug

💬 Feature/Topic Area

Profile

Body

Hello GitHub Team and Community,

I would like to report a rendering issue with GitHub Profile README files.

My Profile README displays correctly when I am logged into my GitHub account. However, when viewing the same profile while logged out or in Incognito mode, images from shields.io are rendered differently.

Specifically, badge images that should appear horizontally are displayed vertically instead.

Affected sections include:

• Social/profile badges
• Technology stack badges
• Tools and workflow badges
• Research/documentation badges

I tested multiple approaches, including:

• Markdown image badges
• HTML tags inside
• wrappers around images
• Different image sizes and badge styles
• HTML tables as a workaround

The issue only appears in the public/logged-out view. The same README content renders correctly while logged in.

Example behavior:

• Logged-in view: badges appear horizontally as expected.
• Logged-out / Incognito view: the same badges are stacked vertically.

GitHub profile:
https://github.com/AhmadJeddi

Profile README:
https://github.com/AhmadJeddi/AhmadJeddi/blob/main/README.md

This issue can be reproduced by comparing the profile in logged-in and logged-out views.

Could this be related to differences in the public Markdown/HTML rendering system or CSS sanitization?

Thank you for looking into this.

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