Cursor Design mode can't inspect iframe

Support Bug Reports
1

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

My app is embedded in and iframe and when I open it inside Cursors chrome tab - the inspector and design mode can’t see the layout inside the iframe, thought usual devtools can no problem

Steps to Reproduce

For example open any Telegram Web Mini App - they all run inside the iframe and all of them can’t be insepcted via Cursors Design Mode

Expected Behavior

Can inspect and pick html elemets inside the iframe

Operating System

Windows 10/11

Current Cursor Version (Menu → About Cursor → Copy)

Version: 2.2.20 (system setup)
VSCode Version: 1.105.1
Commit: b3573281c4775bfc6bba466bf6563d3d498d1070
Date: 2025-12-12T06:29:26.017Z
Electron: 37.7.0
Chromium: 138.0.7204.251
Node.js: 22.20.0
V8: 13.8.258.32-electron.0
OS: Windows_NT x64 10.0.26200

Does this stop you from using Cursor

No - Cursor works, but with this issue

2 Likes
2

Got a link in mind you can share?

3

A little complex - you would need a Telegram account for this. U can open web telegram https://web.telegram.org/ log into your account if u have one and then open for example this web app Telegram: Launch @word (just example, not even my app)
And this is the most deep I can go

{6231585A-6867-44AC-A40D-C396B7CF5A48}
{6231585A-6867-44AC-A40D-C396B7CF5A48}1396×1271 164 KB

4

I just found this topic with pretty much the same problem Browser - cannot select iframe elements

But right now it hurts even more after releasing new Design Mode which I really wanna try out on my app, but I can’t. And there is no option to actually track when this problem gonna be fixed

5

Thanks @Benjamin_Korser. I found an internal discussion about this and it’s definitely something we’d like to support at some point. I’ve added your +1.

1 Like
6

And we might not be that far off :eyes:

2 Likes
7

Glad to hear! Can’t wait!
This second update from you - you found even more info about it?)

1 Like
8

I’m experiencing the same issue while working with React Email. It lets you spin up a server locally and then preview the email in the browser. This preview is rendered inside an iframe, and, using the Cursor browser, I’m unable to select any elements inside it.

1 Like
10

Same problem here! Also developing a tg mini–app and was very disappointed that the Cursor’s layout editor can’t see past the iframe, please fix it!