You can easily do this, at least with Claude Code. Ask it to install and use Playwright to confirm rendering and flow. You're correct that it is a failing to

You can easily do this, at least with Claude Code. Ask it to install and use Playwright to confirm rendering and flow. You're correct that it is a failing to not do this. When you do, it definitely helps cut down on bugs. EDIT: Sorry, just noticed you said "real browser". Haven't tried this but Playwright gets you a long way down the road.