Cannot connect to existing browser CDP session on localhost:9222

[guocity]

When attempting to connect to an existing browser via a CDP session (e.g., localhost:9222), the CLI opens a new browser instance instead of attaching to the existing one.

Steps to reproduce:
1. Start a browser with remote debugging enabled on port 9222.
2. Run playwright-cli attempting to connect to that CDP endpoint.

Actual result: A new browser window opens.
Expected result: It should connect to the existing session at localhost:9222.

[nwaokoron]

+1
Facing same behavior when trying to connect to a remote browser like Browserbase via the CDP option.

[pavelfeldman]

Make sure { browser: { isolated: false } } is set. CLI is isolated by default and that includes CDP. We'll consider swapping the defaults for it.