Bug in Cursor's built-in simple web browser

Hey, thanks for the report. This is a known issue, there are already a few threads about it.

Main thread: Bug: Browser tab unresponsive after moving to new window (v2.4.22)

Current workaround:

  • Don’t move the Browser tab into a separate window, keep it in the main Cursor window
  • Or open localhost directly in a regular browser

If there are updates, they’ll show up in the main thread. I’m closing this thread as a duplicate.