Hey, thanks for the report. This looks like a bug in Cursor 2.0.38’s browser tab feature. We’ve seen a similar report here: Cursor 2.0 In app browser is not opening website
Could you please share:
- A screenshot of the certificate error you’re seeing
- Whether this affects HTTP localhost or only HTTPS
In the meantime, I’ll pass this to the team. As a temporary workaround, you may need to use an external browser for local development until this is fixed.