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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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).
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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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Worked before on Chrome. Now with version Version 118.0.5993.70 it is not working anymore.
After hours of looking at CORS solutions and try them without success, this worked like a charm on Chrome Version 117.0.5938.132 (Official Build) (64-bit), June 2023. Thank you very much! I recommend it and for sure will make a donation
It ins not work
There is a toggle icon on the left side to turn on the plugin, toggle it and ensure the plugin is activated, . Worked fine after this step.
doesn't work, i didn't see changes in how headers are submitted nor in the browser just enabling cros, plain and simple
Preflights requests don't seem to be handled correctly.
Didn't work. I installed it, then reloaded my local page (file://yadda yadda). CORS is still blocked. Tried the test page and I get: CORS is blocked for GET ✖ So either the extension doesn't work or it's too complicated to use. My steps: Install > Enable extension > Go to my page > Add to white list > Refresh and test > Go to test page ...so yeah, I'm giving up. If this thing is supposed to work then it needs better UX.
It broke my entire pc, cant use discord or basically any website
Rất tốt
Solved CORS problem on localhost efficiently and effectively