Easily add (Access-Control-Allow-Origin: *) rule to the response header.
- By:
- Muyor
- Users:
- 800,000
- Rating:
- 3.38 (282)
1 new ratings
- Version:
- 0.2.0 Last updated: 2024-10-27
- Creation date:
- 2020-03-08
- Risk:
- Moderate risk impact Low risk likelihood
- Permissions:
- storage
- webRequest
- declarativeNetRequest
- storage
- Host permissions:
- <all_urls>
- <all_urls>
- Size:
- 78.31KB
- Email:
- mu*****@gmail.com
- Full description:
- See detailed description
- Source:
- Chrome Web Store
- Updated:
- a day ago
Ranking
# 403 ▲ 91
Other platforms

User reviews
Pros
- Effectively enables local development by resolving CORS issues for localhost projects.
- Simple to use and works as expected when properly configured.
- Highly appreciated by developers as a time-saver and life-saver tool.
- Supports customization with 'Custom CORS rules' for better functionality.
Cons
- Some users report the extension does not work or is ineffective in certain scenarios.
- Requires manual activation or proper configuration after installation, which may not be obvious to all users.
- In some cases, use of the extension causes sites like YouTube or other APIs to block users or their API keys, resulting in loss of access.
- A few users experienced being blocked by websites or security services such as Cloudflare when using the extension.
Recent reviews
My local project works now. Thanks Mujo from yet another saved from agony developer - you rock!
by
Ro*****, 2025-04-03
Working
by
Ri*****, 2025-03-27
What a life saver for developers
by
Ko*****, 2025-03-15
Extension safety
Risk impact
Allow CORS: Access-Control-Allow-Origin requires a few sensitive permissions. Exercise caution before installing.
Risk impact analysis details
- Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
- High ****** *** ********* ** ******* *** ******* ******* ** ****** *** *** ******** ******
Risk likelihood
Allow CORS: Access-Control-Allow-Origin has earned a fairly good reputation and likely can be trusted.
Risk likelihood analysis details
- Low This extension was updated more than 6 months ago. Older versions are more likely to be stable and safe.
- Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
- Low **** ********* *** **** **** ****** ******* ********** **** ****** ** ** ****** *** *****
- Good **** ********* *** **** **** *******
Upgrade to see full risk analysis details
Promo images
Compare extensions
- Compare Allow CORS: Access-Control-Allow-Origin vs CORS Unblock
- Compare Allow CORS: Access-Control-Allow-Origin vs Moesif Origin/CORS Changer & API Logger
- Compare Allow CORS: Access-Control-Allow-Origin vs Cross Domain - CORS
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