Can't create terminal when launch electron backend in vscode.

[hyy215]

Bug Description:

Can't create terminal when launch electron backend in vscode.

Steps to Reproduce:

1. open vscode.
2. Enter 'F5' to launch electron backend.
3. open the terminal.

Additional Information

• Operating System: win10
• Theia Version: master(9142e6d)

[inlann]

You need to check if there is any errors in your backend console since your titlebar is missing and your frontend windows does not work correctly.

[vince-fugnitto]

@hyy215 any update or can the issue be closed?

[hyy215]

You need to check if there is any errors in your backend console since your titlebar is missing and your frontend windows does not work correctly.

@inlann @vince-fugnitto No error log in backend console.

[mblout]

i am seeing something similar launching theia in a browser on windows
if I run from theia CLI and open localhost:3000, opening a cmd terminal works.
but launched from (electron) theia ide, opening the terminal does not work
except when i set breakpoints to debug the issue, and then sometimes it works. a connection timing issue?
(Still trying to understand the proxy enough/code to debug, but no obvious console errors)

[msujew]

Closing in favor of #12733, as that contains a bit more info on why this happens.