Allow CORS: Access-Control-Allow-Origin

Allow CORS: Access-Control-Allow-Origin

Easily add (Access-Control-Allow-Origin: *) rule to the response header.

Allow CORS: Access-Control-Allow-Origin promo image
What is Allow CORS: Access-Control-Allow-Origin?

Allow CORS: Access-Control-Allow-Origin is a vital Edge add-on empowering users to conduct cross-domain Ajax requests in web applications without restrictions. It facilitates CORS (Cross-Origin Resource Sharing) by tweaking the response header, typically blocked in modern browsers' JavaScript APIs. Once installed, the add-on is inactive by default but can be activated through the toolbar popup. Navigate and hit the toggle button to transform the grey C icon to orange, signifying activation.

Stats date:
Rating: 3.70 (6)
Version: 0.1.9 (Last updated: 2023-09-03)
Creation date: 2021-04-08
Manifest version: 3
  • storage
  • webRequest
  • declarativeNetRequest
Host permissions:
  • <all_urls>
Size: 74.34K
Risk impact: High risk impact
Risk likelihood: Moderate risk likelihood

Other platforms

Allow CORS: Access-Control-Allow-Origin
Allow CORS: Access-Control-Allow-Origin (v0.1.9)
3.37 (237) 755,623
Not available on Firefox

Allow CORS: Access-Control-Allow-Origin lets you easily perform cross-domain Ajax requests in web applications.

Simply activate the add-on and perform the request. CORS or Cross-Origin Resource Sharing is blocked in modern browsers by default (in JavaScript APIs). Installing this add-on will allow you to unblock this feature. Please note that, when the add-on is added to your browser, it is inactive by default (toolbar icon is grey C letter). If you want to activate the add-on, please open the toolbar popup and press the toggle button on the left side. The icon will turn to an orange C letter.

If you have a feature request or found a bug to report, please fill out the bug report form on the add-on's homepage (

User reviews
Follow the instruction. Test cors working fine but if I test it to web application it's not working.
by Ammar, 2021-08-31

great solved my problem with Microsoft Rewards and Bing searches for points not working I could search but points would not add on.
by chris, 2021-05-20

Great Extension
by Kolappan, 2020-12-31
View all user reviews
Risk impact

Allow CORS: Access-Control-Allow-Origin is risky to use as it requires a number of sensitive permissions that can potentially harm your browser and steal your data. Exercise caution when installing this add-on. Review carefully before installing. We recommend that you only install Allow CORS: Access-Control-Allow-Origin if you trust the publisher.

Risk likelihood

Allow CORS: Access-Control-Allow-Origin is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

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Promo images
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