WebKit under macOS fails to forward multiple keys such as arrow keys to Monaco editor

[ivy-lmu]

Describe the bug
We embed various webbased editors into Eclipse using swt browser. Some of these editors contain a Monaco editor, but it cannot be used because different keystrokes are not passed to Monaco. Without guarantee of completeness, the following keys are affected:

• arrow keys (crucial for navigating through the content of the editor & code completion)
• Delete
• Backspace (at least new line cannot be deleted)

To Reproduce

1. open Eclipse
2. open Internal Web Browser
3. go to https://microsoft.github.io/monaco-editor/
4. scroll down to the editor, where you can try out the aforementioned keystrokes that do not work

Expected behavior
All keystrokes should be forwarded to Monaco, as is the case with Linux and Windows.

Screenshots

Bildschirmaufnahme.2024-07-09.um.14.54.21.mov

Environment:

1. Select the platform(s) on which the behavior is seen:

• • All OS
• • Windows
• • Linux
• • macOS

Version since
at least since Eclipse 2024-3