serverReadyAction.killOnServerStop doesn't work correctly with Django debug sessions

[samamorgan]

Type: Bug

Behaviour

When running a Django runserver debug session, if I make changes to source files, the configured browser debug session stops.

Expected vs. Actual

I expect the browser debug session to stay alive when Django reloads on source file changes, but it dies.

Steps to reproduce:

1. Add the following launch configuration with a Django project.

    {
      "name": "Django Server",
      "type": "debugpy",
      "request": "launch",
      "program": "manage.py",
      "args": [
        "runserver"
      ],
      "django": true,
      "justMyCode": true,
      "serverReadyAction": {
        "pattern": "Starting development server at (.*)",
        "uriFormat": "%s",
        "action": "debugWithChrome",
        "killOnServerStop": true
      },
      "consoleTitle": "Django Server"
    },

2. Run "Django Server"
3. Modify a source file in the Django app. Django will detect the change and reload itself, causing the browser session to die.

Diagnostic data

• Python version (& distribution if applicable, e.g. Anaconda): 3.11.6
• Type of virtual environment used (e.g. conda, venv, virtualenv, etc.): Global
• Value of the python.languageServer setting: Pylance

Output for Python in the Output panel (View→Output, change the drop-down the upper-right of the Output panel to Python)

XXX

User Settings

Multiroot scenario, following user settings may not apply:

languageServer: "Pylance"

experiments
• enabled: false

Extension version: 2024.0.1
VS Code version: Code 1.86.2 (Universal) (903b1e9d8990623e3d7da1df3d33db3e42d80eda, 2024-02-13T19:42:13.651Z)
OS version: Darwin arm64 23.2.0
Modes:

System Info

Item	Value
CPUs	Apple M1 Max (10 x 24)
GPU Status	2d_canvas: enabled canvas_oop_rasterization: enabled_on direct_rendering_display_compositor: disabled_off_ok gpu_compositing: enabled multiple_raster_threads: enabled_on opengl: enabled_on rasterization: enabled raw_draw: disabled_off_ok skia_graphite: disabled_off video_decode: enabled video_encode: enabled webgl: enabled webgl2: enabled webgpu: enabled
Load (avg)	4, 3, 3
Memory (System)	32.00GB (0.48GB free)
Process Argv	--crash-reporter-id 19c6bde3-9a40-4721-8b2c-60febe590630
Screen Reader	no
VM	0%

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