Test: vscode.dev PWA

[joaomoreno]

Refs: #135553

• web @kimadeline
• web @isidorn

Complexity: 3

Create Issue

---

We have enabled offline access in https://insiders.vscode.dev/, which is a core part of PWAs. Test that:

• After using https://insiders.vscode.dev/ for a minute or so, you can go offline, open https://insiders.vscode.dev/ again and basic functionality should still work, especially local file editing. Core, built-in, extensions should work. Marketplace extensions don't.
• When offline, the status bar should turn a red color and there should be a status bar item on the left indicating the offline status.

[hello-smile6]

@joaomoreno It works, at least partially. Here are some screenshots from VSCode Web on the Windows build of https://crrev.com/962708 . I used a temporary profile. If you'd like, I can provide data from the profile.

[isidorn]

@joaomoreno I have done some very basic PWA testing since this is complexity 3 and because it seems like that some features are expectedly still not working. Please let me know if you would like me to give this a more thorough test pass and I can.

[kimadeline]

Local file editing seems to be working reasonably well. At some point I managed to get in an in-between state when getting back online, with the "offline" status disappearing but the status bar still being red, I could search for extensions in the marketplace but the markdown preview wouldn't load. Sadly I haven't been able to repro it 😔