SIGBREAK signal from keyboard not propagated by Windows Terminal

[bozhodimitrov]

Environment

Windows build number:
Platform ServicePack Version      VersionString
-------- ----------- -------      -------------
 Win32NT             10.0.18363.0 Microsoft Windows NT 10.0.18363.0

Windows Terminal version (if applicable):
1.0.1401.0

PowerShell Core:
7.0.1

PowerShell: 
Name                           Value
----                           -----
PSVersion                      5.1.18362.752
PSEdition                      Desktop
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}
BuildVersion                   10.0.18362.752
CLRVersion                     4.0.30319.42000
WSManStackVersion              3.0
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1

Steps to reproduce

1. Open PowerShell or PowerShell Core in Windows Terminal
2. Simulate blocking behavior with Python command:
   python -c "import time; import threading; t = threading.Thread(None, lambda: time.sleep(9999)); t.start(); t.join()"
3. Press keyboard shortcut Ctrl+Break

Expected behavior

Terminated Python process

Actual behavior

Python process is still running

Additional notes:

I tried the same steps in pure PowerShell (powershell.exe)/PowerShell Core (pwsh.exe)/CMD (cmd.exe) - and the result is terminated Python process.

[zadjii-msft]

Thanks for the report! This is actually already being tracked by another issue on our repo - please refer to #1119 for more discussion.

/dup #1119

[ghost]

Hi! We've identified this issue as a duplicate of another one that already exists on this Issue Tracker. This specific instance is being closed in favor of tracking the concern over on the referenced thread. Thanks for your report!