[The documentation](https://developer.mozilla.org/en-US/docs/Mozilla/QA/Writing_xpcshell-based_unit_tests#Debugging_xpcshell-tests) says `./mach xpcshell-test --debugger windbg --debugger-interactive netwerk/test/unit/test_resumable_channel.js` should wait until I attach my debugger, but instead it just proceeds if there is no `windbg` in my path. This way I can't use the new [WinDbg Preview](https://www.microsoft.com/en-us/p/windbg-preview/9pgjgd53tn86).
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[The documentation](https://developer.mozilla.org/en-US/docs/Mozilla/QA/Writing_xpcshell-based_unit_tests#Debugging_xpcshell-tests) says `./mach xpcshell-test --debugger windbg --debugger-interactive netwerk/test/unit/test_resumable_channel.js` should wait until I attach my debugger, but instead it just proceeds if there is no `windbg` in my path. This way I can't use the new [WinDbg Preview](https://www.microsoft.com/en-us/p/windbg-preview/9pgjgd53tn86). (It's `DbgX.Shell.exe` and it's not on the PATH.)