ForceCORS

Allows forcing Cross-Origin Resource Sharing headers on any desired URL; helpful when accessing remote services from a local host.

ForceCORS - Chrome Extension

ForceCORS is a Google Chrome extension that allows you to selectively apply Cross-Origin Resource Sharing (CORS) Headers to web server responses of your choice. It helps in developing web applications that make Ajax/XHR requests by providing a way to add headers without disabling XHR security. The extension requires specifying monitored domains and explicit definition of headers to be added.

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Extension stats

This extension was removed from Chrome Web Store on 2021-12-07

By: cdeely

Users: 2,000+

Rating: 3.81

(16)

Version: 1.1 (Last updated: 2014-03-21)

Creation date: 2014-03-21

Risk impact: High risk impact

Risk likelihood:

High risk likelihood

Manifest version: 2

Permissions:

webRequest
webRequestBlocking
http://*/*
https://*/*

Size: 81.24K

URLs: Website

Other platforms

Not available on Android

Not available on Firefox

Not available on Edge

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Extension summary

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ForceCORS is a Google Chrome extension which allows you to selectively apply CORS Headers to any web server responses you choose. This is extremely helpful when developing a web application that makes Ajax/XHR requests.

The extension requires you to specify the domains that you wish to monitor and allows you to explicitly define the headers to be added. This is preferable to completely disabling XHR security in your browser, which is a big security hole.

Regarding Permissions In order to allow you to append headers to ANY arbitrary location, this extension requires access to intercept ANY web request. However, by default the extension does NOT monitor any web traffic. Only URLs you specifically whitelist will be read by the extension, and only headers that YOU specify will be appended.

Note: Headers added by this extension will not appear in the DevTools "Network" panel due to a known Chrome bug: https://code.google.com/p/chromium/issues/detail?id=258064

This extension is open source under the MIT License and can be found on GitHub: https://github.com/chrisdeely/ForceCORS

User reviews

Very useful extension, thanks! Own settings for specific url patterns are great, and all works fine.

Николай Калинин, 2018-06-28

This extension made my developer's life MUCH easier. The competing extensions worked OK on some points but failed at customizability (e.g. setting Access-Control-Allow-Origin to a non-default value).

Frédéric Bonnet, 2016-10-25

Doesn't work. No instructions. No explanation. Entering items does nothing. Links to docs are broken. Don't know what to say. Tried it three times now.