Allow CORS: Access-Control-Allow-Origin
Tools
Easily add (Access-Control-Allow-Origin: *) rule to the response header.
Users
800K
Rating
3.4
Reviews
294
7D Growth
0|0%
Stable signalNo paid features detectedHigh-risk permissions
CORS Unblock
No more CORS error by appending 'Access-Control-Allow-Origin: *' header to local and remote web requests when enabled
Users200KCurrent public install base
Rating4.1Store average score
Reviews175Public review volume
Manifest versionV3Extension platform version
7-day growth0Net users gained this week
7-day growth rate0%Relative weekly velocity
Preview
4 assetsCORS Unblock Media preview
Trend
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7-day rating change
Start
4.08
Latest
4.08
7-day rating change
0.00
2026年7月14日2026年7月20日
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1-day growthFlat
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00%Technical snapshot
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Version0.5.2
ManifestV3
Size198KiB
Languages1English
Published
Store updated
Last crawled
English
Overview
Product summary
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This extension bypasses the "XMLHttpRequest" and "fetch" rejections by altering the "Access-Control-Allow-Origin" and "Access-Control-Allow-Methods" headers for every request that the browser receives. You can activate the extension by pressing the action button. Also, use the right-click context menu over the action button to modify which headers the extension manipulates. You can also ask the extension not to overwrite these headers when the server returns values for them.
The default values for the headers:
Access-Control-Allow-Origin: request initiator or empty
Access-Control-Allow-Methods": GET, PUT, POST, DELETE, HEAD, OPTIONS, PATCH, PROPFIND, PROPPATCH, MKCOL, COPY, MOVE, LOCK
Access-Control-Allow-Methods: request initiator or empty
Access-Control-Allow-Credentials: true
Reviews
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Store average score4.1Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average4.0Average computed only from synced review bodies below
Reviews with text131Synced review bodies
Total ratings / reviews175Chrome Web Store public rating/review count
Store average score: 4.1. 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 meets basic needs, but cannot set cookies in headers.
Awesome, it works, when some of the others don't work in all scenarios.. this is good, simple!
i have searched many ways from stackoverflow to youtube but the ways can't solve. Extension this is the only thing that helped me. Thanks developer. I come from Vietnam.
awesome, it works!
Works great!
It did its job, but make sure to disable it completely when you don't use it. It caused whatsapp web to stop functioning, even when it was not running.
Finally an extension that ACTUALLY worked!!!
IT JUST WORKS PERFECTLY!
Very good!
Мешает работе некоторых сайтов, провоцируют ошибки CORS\