[Bug]: Webview keyboard events are not handled correctly using AU in Ableton Live

[colinsullivan]

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Detailed steps on how to reproduce the bug

Create an AU plugin project with projucer Put a webview in it, load a website with a text field Launch the AU in Ableton Live 12

1. Try to paste into the text field using keyboard shortcuts. Note copy/paste does not work.
2. Try to receive keyboard events for up/down arrows. Note up/down arrow keyboard events do not make it into the webview.

Note the VST3 wrapper works as expected.

Example project:

https://github.com/colinsullivan/juce-webview-simple/tree/601729f9b7490d48413435e6db184db27ee794e9

See related issue: https://github.com/juce-framework/JUCE/issues/1515

AU:

https://github.com/user-attachments/assets/b688186a-d98d-44c5-9bc7-399528864af8

https://github.com/user-attachments/assets/59da7dea-a811-46a8-8801-7ab565e535f2

VST3:

https://github.com/user-attachments/assets/2774ac18-c668-4198-90e8-911a630223c3

https://github.com/user-attachments/assets/e5965267-86e3-4d68-af43-e966fa85ede2

What is the expected behaviour?

Copy/paste into text field is possible when a text field is focused in a webview. Up/down arrow keyboard events can be used by the webview.

Operating systems

macOS

What versions of the operating systems?

Ventura 13.6.3 Sonoma 14.4.1 Sequioa 15.1.1

Architectures

Arm64/aarch64

Stacktrace

N/A

Plug-in formats (if applicable)

AU

Plug-in host applications (DAWs) (if applicable)

Ableton Live 12

Testing on the develop branch

The bug is present on the develop branch

Code of Conduct

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