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14日2026年7月20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
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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not work
Не работает
Works great, thanks a lot!! If it doesn't work you make sure to right click and enable all three access control headers :)
Very easy to use: just install & activate it – and you're good to go! Does its job seamlessly :) Thank you! Feature request: It would be great to be able to define website where the extension is turned on. So it would affect, for example, only website under development and not the rest ones. Thanks!
Works like a charm
Works perfectly!
Работает
Thanks. Would it be nice to have the option to automatically block again when opening a new closing and opening browser.
Did not work. Only replaced the error I was receiving with a different one.
Not working