WhatsApp Web does not display the QR code for login

[shlyakpavel]

Summary

When I load WhatsApp Web in Ladybird, the QR code for scanning does not appear.

Operating system

macOS

Steps to reproduce

1. Open Ladybird
2. Change UA to Chrome
3. Navigate to https://web.whatsapp.com/
4. Observe

Expected behavior

QR code shows up

Actual behavior

QR code doesn't show up

URL for a reduced test case

https://web.whatsapp.com/

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

N/A

Log output and (if possible) backtrace

It's spammed with A LOT of
342811.755 WebContent(25408): FIXME: InlineFormattingContext::dimension_box_on_line got unexpected box in inline context:
342811.755 WebContent(25408): Label <label.x17fgdl5.x1f6kntn.xt0psk2> at (885.15625,482.84375) content-size 0x0 [0+0+0 0 0+0+0] [0+0+0 0 0+0+0] children: inline
  TextNode <#text>

Screenshots or screen recordings

Build flags or config settings

No response

Contribute a patch?

• I’ll contribute a patch for this myself.

[shlyakpavel]

Our Text/input/wpt-import/html/syntax/parsing/html5lib_tests11.html test does the same output, possibly easier to reduce that

[Gingeh]

The log spam is very similar to #2761