Unable to run simulator when accessing via insiders.vscode.dev or https://insiders.vscode.dev/makecode

[ethansTJ]

I came across a link suggesting to use https://insiders.vscode.dev/makecode to play with the experience and discovered that the simulator wasn't launching nor was the "build for hardware" working. After fighting it a while I tried installing the extension in regular https://vscode.dev and the simulator worked as did the build for hardware. It appears maybe it is a CORS or CSRF issue where the site isn't allowing itself to be embedded by insiders.vscode.dev?

[abchatra]

@riknoll CORS issue for online VSCode. Can you please take a look at this?

[abchatra]

I can reproduce the issue.

[abchatra]

Thanks @ethansTJ for reporting this.

[riknoll]

as a workaround, you can add ?vscode-coi=off to the end of the URL to bypass this issue.