Bypass CORS to fetch files when working with localhost

Published on May 24, 2023

1 min read


Sometime back I learned about opening files or directories using the open command from the CLI on a Mac. It's simple yet effective.

Another use case that I've been using it for is to open the current project when in localhost in the browser and bypass the CORS policy to fetch files that are also available locally.

open -a "Google Chrome Canary" --args --user-data-dir="/tmp/chrome_dev_test" --disable-web-security

The argument passed in the above command overrides the browser's default behavior.

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Aman Mittal author

I'm a software developer and a technical writer. In this blog, I write about Technical writing, Node.js, React Native and Expo.

Currently, working at Expo. Previously, I've worked as a Developer Advocate at Draftbit, and Senior Content Developer at Vercel.

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