CORS Helper

Lightweight CORS web development tool allows developers to modify Ajax responses Access-Control-Allow-Origin:*.

CORS Helper Chrome Extension: Adjust Ajax Responses

The 'CORS Helper' is a potent Chrome extension designed for developers. It facilitates the modification of Ajax responses through the adjustment of Access-Control-Allow-Origin:*. This means that developers can set varying return values to enable user access to specified resources from different source servers. Custom values for HTTP response headers can also be set up. CORS Helper also provides a feature for specific origin setting, like http://localhost:3000. Once installed, it's easy to enable the 'cross-source resource sharing' feature by clicking the icon in the top right corner.
Install from Chrome Web Store

Extension stats

Manifest V2
By: Atom
Users: 3,000+
Rating: 3.67
(3)
Version: 1.2.2 (Last updated: 2019-06-14)
Creation date: 2019-06-11
Permissions:
  • storage
  • webRequest
  • <all_urls>
  • webRequestBlocking
Size: 69.00K
Full description: See detailed description

Other platforms

Not available on Android
CORS dev tool (v1.1.4)
25 5.00 (2)
Not available on Edge

User reviews

not working, try this one https://chrome.google.com/webstore/detail/allow-cors-origin/igomecoafaibkpelmljakiklmgdajojk
by Bryan Tan, 2023-06-11

only extension that worked
by behrad jafari, 2020-09-07
View all user reviews

Extension safety

Risk impact

CORS Helper requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details
  • Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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Risk likelihood

We don't have sufficient data to confidently determine the risk likelihood of CORS Helper. 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.
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
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