External links don't work when embedded in VSCode #3251

External links don't launch when DevTools are embedded within VSCode.

This affects a several places, including the warning banners on the performance and memory views, and the new debug toggle tooltips.

The links fail silently - this is because the embedded VSCode Chrome view has the "allow-popups" sandbox flag disabled. Links work correctly in Android Studio.

I have a fix for this that also requires support in DartCode.