Quit Electron app when back end fails to start. Fixes #12769 #12778
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What it does
When the back end process fails to start for some reason, the Electron process hangs with no Windows visible. This PR does an
app.quit
in electron if the back end process fails to start.Fixes #12769
Contributed on behalf of STMicroelectronics
How to test
Start the electron version with a bogus parameter, for example
yarn electron start --log-level=Gurkensalat
. Make sure you get back to the command prompt. Make sure the same command line works for correct cmd line argments.Review checklist
Reminder for reviewers