Summary

When using a <iframe> element with style="width: 100%; height: 100%", the height property is not respected in Ladybird. Instead of filling the height of the viewport as expected, the iframe uses a minimum height.

Operating system

Linux

Steps to reproduce

1. Open Ladybird.
2. Open the reduced test case.
3. Observe the iframe's height.

Expected behavior

The iframe should fill the entire height of the viewport, similar to the behaviour in other web browsers.

Actual behavior

The iframe does not fill the height of the viewport.

URL for a reduced test case

data:text/html,<iframe style="width: 100%; height: 100%" src="https://info.cern.ch/hypertext/WWW/TheProject.html"></iframe>

HTML/SVG/etc. source for a reduced test case

<iframe 
    style="width: 100%; height: 100%" 
    src="https://info.cern.ch/hypertext/WWW/TheProject.html">
</iframe>

Log output and (if possible) backtrace

N/A - Visual bug. No relevant logs emitted.

Screenshots or screen recordings

Build flags or config settings

No response

Contribute a patch?

• I’ll contribute a patch for this myself.