CORS Unblock
Developer Tools
No more CORS error by appending 'Access-Control-Allow-Origin: *' header to local and remote web requests when enabled
Users
200K
Rating
4.1
Reviews
175
7D Growth
0|0%
Stable signalNo paid features detectedHigh-risk permissions
Allow CORS: Access-Control-Allow-Origin
Easily add (Access-Control-Allow-Origin: *) rule to the response header.
Users800KCurrent public install base
Rating3.4Store average score
Reviews294Public review volume
Manifest versionV3Extension platform version
7-day growth0Net users gained this week
7-day growth rate0%Relative weekly velocity
Preview
5 assetsAllow CORS: Access-Control-Allow-Origin Media preview
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7-day rating change
Start
3.41
Latest
3.41
7-day rating change
0.00
2026年7月15日2026年7月21日
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00%Technical snapshot
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Version0.2.1
ManifestV3
Size90.44KiB
Languages1English
Published
Store updated
Last crawled
English
Overview
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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 (https://mybrowseraddon.com/access-control-allow-origin.html).
Reviews
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Store average score3.4Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average3.2Average computed only from synced review bodies below
Reviews with text226Synced review bodies
Total ratings / reviews294Chrome Web Store public rating/review count
Store average score: 3.4. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.
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It would be better if you could actually have a blacklist of domains instead of whitelist. I want to use it on localhost, and not anywhere else
Very nice and simple extension that lets you bypass most of CORS limitations. It fails in cases when specific HTTP methods are used (such as PATCH, etc), but practically it will cover 99.9999% of all cases when you need to get rid of CORS
It works! This extension is NOT PLUG N PLAY! You need to ENABLE IT MANUALLY. Watch video tutorial before you use this. You can find video tutorial on the 'overview' section on this page
the advance setting is quite helpful in this plugin
not working
This extension is using around 6 GB OF ram on my macbook pro, the developer must be using some kind of crypto script. If so this is illegal and fraud please take action.
works
Saved my day. Watch tutorial video before down-vote
So easy to use and very very usefull.
It no longer works for chrome 87+