Clicking an agent-provided localhost URL does nothing when Simple Browser already has that URL open (no focus / no refresh)

Support Bug Reports
1

Where does the bug appear (feature/product)?

Cursor for iOS

Describe the Bug

When the agent opens a URL that’s already open in Simple Browser/Glass (e.g. http://127.0.0.1:8000/), Cursor often reuses the tab but doesn’t focus it or reload it. So a click looks like a no-op, and you keep staring at the stale page until you close the old tab and open again.

Steps to Reproduce

Where: Agent chat link open → Simple Browser / Glass browser
Cursor: 3.15.6
OS: macOS 26.6 (arm64)

Steps:

Have the agent open http://127.0.0.1:8000/ (or any local app URL).
Leave that tab open.
Later, after the app changes, click the same URL again from a new agent message / “open resource”.
Actual: Nothing visible happens. The existing tab is not focused and not refreshed, so it looks like the open failed and you’re still on the old UI. Closing the old tab and clicking again shows the updated app.

Expected Behavior

Expected: Reopening the same URL should either:

focus the existing tab and reload, or
open a fresh tab with the current page.
Why it matters: During local app iteration, agents repeatedly share localhost links. Silent reuse of a stale tab makes users think the change didn’t ship.

Operating System

MacOS

Version Information

Cursor: 3.15.6
OS: macOS 26.6 (arm64)

For AI issues: which model did you use?

Grok 4.5

Additional Information

Workaround: Close the existing Simple Browser tab, then click the link again (or manually refresh the old tab).

Does this stop you from using Cursor

No - Cursor works, but with this issue

5

Hey, thanks for the detailed report with steps and the version. It helped us figure it out quickly.

Reusing the tab is intentional here so we don’t create duplicates of the same URL, but the fact that the page doesn’t refresh on reuse and the click looks like a no-op is a gap we’re tracking.

For now, the workaround is what you described:

  • press Cmd+R or click the reload button on the already open tab, or
  • close the existing tab and click the link again.

If there’s an update, I’ll reply in the thread.