makecode extension in vscode is throwing error: trg-arcade.userpxt.io refused to connect.

[gdominiq]

Describe the bug After installing the makecode extension in vscode, running the simulator option shows error: trg-arcade.userpxt.io refused to connect.

To Reproduce Steps to reproduce the behavior:

1. Go to makecode extension icon
2. Click on Import a project
3. Paste a makecode project url, click return to import
4. Click on Start MakeCode simulator
5. error displays

Expected behavior Simulator to run the project

Screenshots See attached

Desktop (please complete the following information):

• OS: Windows 11 Version 23H2
• Browser Edge
• Version 126.0.2592.102 (Official build) (64-bit)

[riknoll]

we need to set the COEP header on our server's response to require-corp

that also means that we need to enable CORP everywhere, which we already do except I don't see it on responses from our CDN. this is likely something we need to manually enable

https://web.dev/articles/why-coop-coep#coep