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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Thankyou buddy 😍👍
Solved my problem
Very good extension for working on ongoing development projects. Additionally, the extension has been well thought out. Thank you for all the effort and for sharing it.
не работает
Works great!
My site which needed this worked. Thanks!
Frankly, I was a bit concerned when I was playing my idling game during some free time. And ran into devastating error. With my limited HTML knowledge I managed to reduce the problem to a CORS issue. Thank god for this extension as it has saved my game. I thank you glorious developers.
Muy buena para realizar pruebas de desarrollos con backend remoto. Hay que tener ojo para desactivarla despues de usarla, ya que afecta el funcionamiento de algunos sitios.
Love it it Works!!! Thank you 🙏🙏
You saved my project