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13日2026年7月19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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好用，可以用来调试api，比如在本地swagger应用中使用。有个白名单功能不知道是否能用，不过看产品主页的FAQ上说不支持白名单，后续测试下。
in my case, the only one who works
It works, but it was not clear how to turn it on. If the C at the top of Chrome is gray, it is not on. You have to click that C and then click the big C in the popup to actually turn it on. The instructions are not very clear.
aint working trash
pretty good extension. But I also figured aout how to avoid cors in chrome browser for local debugs: https://alfilatov.com/posts/run-chrome-without-cors/
I am React Developer and really need to connect localhost to live backend (Cross domain). And this saved my time alot.
This blocks everything Google console not working Youtube videos not working Video upload not working Worst ever service in fact unable to get why it's happening then I search they are saying check extensions
It worked.
Tested on macOS and Windows. On both systems the plugin has no effect. Chrome Version 71.0.3578.98
This is not a CORS enabler! This is a CORS tester