Copying in Safari makes an error sound even if copy works

[maribethb]

Describe the bug

You can copy and paste blocks using Command+C/V on Mac. However, in Safari, copying is accompanied by an annoying system-level error sound. It still copies successfully and you can paste fine.

To Reproduce

1. Open a playground in Safari on Mac
2. Select a block
3. Command+C to copy it
4. Hear the error sound
5. Command + V to paste and see it worked fine

Expected behavior

No error sound.

Screenshots

Desktop (please complete the following information):

• OS: macOS
• Browser: Safari

Additional context

This reproduces in both blockly master and beta channels (not a regression)

This does not happen on Chrome on the same macOS device. I tried to search about t his issue and found people complaining aboutit from a consumer side, but nothing about how to prevent it on the developer side, so I'm not sure if this is even possible to fix.

[alschmiedt]

I tested a 2018 version of Blockly as well as previous versions of safari and it looks like in every situation the same error is present.

[rachel-fenichel]

Link to consumer-side complaints?

[gonfunko]

In current (14.1.1) Safari, I can repro this but the paste doesn't actually work. Copy/paste with Control C/V works fine, but Command C beeps and Command V does nothing.

[gonfunko]

Edit: I have an extension that prevents websites from hijacking these shortcuts :) Can now repro the behavior described (command c/v works, but c beeps), looking into this further.