[Bug 56896] New: Spotify CEF Sample Application: browser only opens the headline

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=56896

Bug ID: 56896
           Summary: Spotify CEF Sample Application: browser only opens the
                    headline
           Product: Wine
           Version: 9.8
          Hardware: aarch64
                OS: MacOS
            Status: UNCONFIRMED
          Severity: critical
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]

Created attachment 76715
  --> https://bugs.winehq.org/attachment.cgi?id=76715
sample video and logfile

The browser opened with wine only shows the headline with empty content. Inside
that empty space the buttons are still clickable and input can be written into
the invisible input fields. Video about the bug is attached.

mozaBook is an educational presentation software developed by us (Mozaik
Education) which uses our custom windowing library based on Windows GDI+. We
use CEF in several windows for example Number line (which is an HTML
application). The CEF content is simply black. It does not work in any version
of the mozaBook (64 bit version). We included a screenshot
(number_line_mac.png). We suppose that the bug in the mozaBook occurs because
the whole CEF does not work under MacOS.

Computer specs:
- OS: macOS Sonoma 14.5 arm64
- Kernel: Darwin 23.5.0
- WM: Quartz Compositor
- CPU: Apple M1 (8) @ 3.20 GHz
- GPU: Apple M1 (8) [Integrated]

Wine version: wine-9.8 (Staging)

The software can be freely downloaded and tested.
Download URL:
"https://cef-builds.spotifycdn.com/cef_binary_126.2.9%2Bg169fea9%2Bchromium-1..."