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
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7-day rating change
Start
4.08
Latest
4.08
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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Version0.5.2
ManifestV3
Size198KiB
Languages1English
Published
Store updated
Last crawled
English
Overview
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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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VueJs ile geliştirme yaparken API isteklerinde Cors origin ... diye bir hata veriyordu. Sorunumu çözdü. Teşekkürler.
Does exactly what it says on the tin. 👍
一键即可开启，简单好用
Don't work
Do good job
работает отлично
While it does not work everytime, It still gives you a pocket to work with if you are lucky enough. I wasn't but I do rate this highly as dealing with CORS can be pretty frustrating when the servers aren't configured and you cannot communicate.
It works 60% of the time that's why 3 stars, other times I get "has been blocked by CORS policy: Request header field content-type is not allowed by Access-Control-Allow-Headers in preflight response."
Macht was es soll. Daumen hoch
It's the only CORS chrome extension that works for me