Drag & drop stopped working for WebView-based Custom Editor on 1.92.0

[tiagobento]

Does this issue occur when all extensions are disabled?: No

• VS Code Version: 1.92.0
• OS Version: macOS Sonoma 14.3 (23D56)

Hi VS Code Team! I'm one of the maintainers and developers of the BAMOE Developer Tools extension, by IBM. I'm reaching out in this channel because we have a bug in our extension that started happening when users upgraded to VS Code 1.92.0, so I figured there might be other people/extensions affected as well.

It's a pretty uncomplicated issue, but has major impact for us and the users of our extension, as they're not able to drag new nodes in the visual editor we provide for DMN files.

The extension is working normally on VS Code 1.91.1 and today's VS Code - Insiders 1.93.0 but not on VS Code 1.92.1. Please see the videos below...

Since this seems fixed for 1.93.0, I guess we can recommend that users hold upgrading to 1.92 and wait until 1.93.0 is out, but it would be great to have some insight in what caused this issue to happen.

Thanks a lot!

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Steps to Reproduce:

1. Install BAMOE Developer Tools on 1.92.0.
2. Open a new DMN file (E.g., foo.dmn)
3. Drag a new node from the Palette at the left-hand-side into the diagram canvas.

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VS Code 1.91.1 (working normally ✅)

Screen.Recording.2024-08-06.at.13.03.19.-.trimmed.-.lowres.mov

VS Code 1.92.0 (broken ❌)

Screen.Recording.2024-08-06.at.13.04.45.-.lowres.mov

VS Code - Insiders 1.93.0 (2024-08-06) (working normally ✅)

Screen.Recording.2024-08-06.at.13.13.14.-.lowres.mov

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