Clipboard api throws 'NotAllowedError: Failed to execute 'write' on 'Clipboard': Document is not focused'

[ZimnitskiYury]

Clipboard write() method not working in desktop Teams

I'm developing a personal tab for Microsoft Teams. Part of the functionality of my app is copying some data to the clipboard. For this, I use the write() method from the clipboard namespace. It works fine in the web version of Teams but throws an error in the desktop Teams.
Failed to copy to clipboard. NotAllowedError: Failed to execute 'write' on 'Clipboard': Document is not focused.

Here is the code snippets that I use to copy data to the clipboard:
1.

const content = ‘Hello, world!’; 
const blob = new Blob([content], { type: ‘text/plain’ });
clipboard.write(blob).catch((error) => { throwError(error); });

2. I also tried to use window.focus() and this approach, but neither of them worked:

const content = ‘Hello, world!’;
const blob = new Blob([content], {type: ‘text/plain’});

const button = document.createElement(‘button’); 
button.innerHTML = ‘Copy’; 
button.style.display = ‘none’; 
button.addEventListener(‘click’, async () => { 
    clipboard.write(blob)
                   .catch((error) => { 
                       throwError(error); 
                   })
                  .finally(() => { 
                     button.remove(); 
                  });
}); 
document.body.append(button); 
pages.returnFocus(); 
button.focus(); 
button.click();

[maglims]

Thanks for reporting. Our engineering team is taking a look and will provide a update when we have some findings. Thanks.

[Prasad-MSFT]

The PR #2201 is a WIP to fix this issue, so please follow that PR for tracking when the fix is available!

[ZimnitskiYury]

@Prasad-MSFT @shrshindeMSFT unfortunately, #2201 didn't solve the issue. isSupported() returns trueonn desktop, but on try clipdoard.write I get the error Failed to copy to clipboard. NotAllowedError: Failed to execute 'write' on 'Clipboard': Document is not focused.
The web version works fine after a request for permission.

[ZimnitskiYury]

actual for #2220

[shrshindeMSFT]

Thank you for reporting. I'll look into it and see if I can repro this issue.