Trusted Types blocked on Parallels for Mac

Support Bug Reports
1

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

When trying to run Cursor on Windows via Parallels on my Mac, in the developer tools i am getting an issue with Trusted Types. Error as follows:
Trusted Type expected, but String received
Your site tries to use a plain string in a DOM modification where a Trusted Type is expected. Requiring Trusted Types for DOM modifications helps to prevent cross-site scripting attacks.

To solve this, provide a Trusted Type to all the DOM modifications listed below. You can convert a string into a Trusted Type by:

defining a policy and using its corresponding createHTML, createScript or createScriptURL function.
defining a policy named default which will be automatically called.
1 directive
Source location Status
workbench.desktop.main.js:542 blocked

Steps to Reproduce

Everytime I run Cursor it doesn’t work.

Expected Behavior

Agent should work

Operating System

Windows 10/11

Current Cursor Version (Menu → About Cursor → Copy)

Version: 2.1.46 (system setup)
VSCode Version: 1.105.1
Commit: ab326d0767c02fb9847b342c43ea58275c4b1680
Date: 2025-12-02T03:59:29.283Z
Electron: 37.7.0
Chromium: 138.0.7204.251
Node.js: 22.20.0
V8: 13.8.258.32-electron.0
OS: Windows_NT arm64 10.0.26100

Does this stop you from using Cursor

Yes - Cursor is unusable

Modo IA free version
2

Hey, thanks for the report. The Trusted Types error in workbench.desktop.main.js:542 is blocking the launch.

Please share:

  • Screenshot of the DevTools console (Help > Toggle Developer Tools) with the full error stack
  • Version of Parallels Desktop and Windows build
  • Any corporate policies/antivirus that might enforce CSP?

Try:

  1. Without extensions: cursor --disable-extensions
  2. Clean profile: cursor --user-data-dir %TEMP%\cursor-clean
  3. With CSP disabled: cursor --disable-site-isolation-trials

If nothing helps:

  • Logs (Ctrl+Shift+P > Developer: Open Logs Folder) in a zip
  • Does Cursor work on native Windows (not Parallels)?

I’ll pass this to the team.

3

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