CORS Unblock

No more CORS error by appending 'Access-Control-Allow-Origin: *' header to local and remote web requests when enabled

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CORS Unblock Chrome Extension: No More CORS Errors

CORS Unblock is a Chrome extension designed to ease browsing by bypassing CORS-related errors. The extension alters the 'Access-Control-Allow-Origin' and 'Access-Control-Allow-Methods' headers, ensuring seamless web requests. It includes additional features such as支 removing CSP-related headers, overwriting returned 4xx status code, and permitting cross-origin frame embedding among others. CORS Unblock is user-friendly with an option to modify headers according to your need.

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Extension stats

By: balvin.perrie

Users: 200,000+

Rating: 4.19

(167)

1 new ratings

Version: 0.3.8 (Last updated: 2024-02-11)

Creation date: 2020-05-27

Permissions:

storage
<all_urls>
webRequest
webRequestBlocking
declarativeNetRequest
contextMenus
debugger

Size: 207.87K

Email: ba*****@gmail.com

URLs: Privacy policy

Full description: See detailed description

Ranking

# 1,452 ▲ 89

Other rankings

#2613 in Developer Tools ▲ 6

#2 in unblock keyword 59 ▲ 1

#16 in policy keyword 15 ▲ 1

#70 in header keyword 47 ▲ 2

#86 in server keyword 49 ▲ 3

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Other platforms

Not available on Android

CORS Unblock (v0.3.8)

7,352+ 3.88

(32)

Not available on Edge

User reviews

These summaries are automatically generated weekly using AI based on recent user reviews. Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.

Pros

Simple and easy to use
Works effectively for parsing HTTP responses
Helps resolve CORS errors for extension development
Highly appreciated by users when it works

Cons

Not working for some users
Issues with compatibility with Manifest v3
Can cause modification of requests even when not active
Big bug when handling requests with credentials

Most mentioned

Works well for most users
Compatibility issues with Manifest v3
Stopped working after updates

User reviews

This is very good & helpful ext to use

Er. Sanskar Dahiya, 2025-03-07

it works good for me，but chrome now was disable to use it at all

Di Qin, 2025-02-06

As simple as it gets

Maksim Dimitrov, 2025-01-23

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Extension safety

Risk impact

CORS Unblock requires a lot of sensitive permissions. Exercise caution before installing.

Risk impact analysis details

Critical Allows for debugging of other web apps and extensions, which can intersect with sensitive information and security boundaries.
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Risk likelihood

We don't have sufficient data to confidently determine the risk likelihood of CORS Unblock. Use it at your own risk.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
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