#2751·msw

Visit website with domain, cause Refused to set unsafe header "cookie"

Author: jeange1003Created May 24, 2026Updated Jun 12, 2026
Labelsbugscope:browserneeds:triage

Prerequisites

Environment check

  • I'm using the latest msw version
  • I'm using Node.js version 20 or higher

Browsers

Chromium (Chrome, Brave, etc.)

Reproduction repository

https://github.com/jeange1003/msw-test

Reproduction steps

  1. npm run dev
  2. Visit the local site via domain, like 'http://my.dev.com', which is configured in host file like '127.0.0.1 my.dev.com'

Current behavior

Error in console: Refused to set unsafe header "cookie" Image

Expected behavior

No error