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15日2026年7月21日
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00%Technical snapshot
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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).
Reviews
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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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写了个 html+js 东东，因为出现这个 from origin 'null' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. 现在用了这个 Allow CORS: Access-Control-Allow-Origin 插件，我放在本地服务器还有上传到网站服务器上都可以用了，至少是一个可行的策略。另外，用油猴脚本来写要实现的内容也是个选择，GM_xmlhttpRequest 杠杠滴能跨域！
Avoid this app , it doesn't work
not working
Not working
还不错了。。至少我们调试的时候用了这个插件解决了目前的问题。哈哈哈。
Before is ok, but now do not work
not working
doesn't work at all
好用，省去了每次都要输入命令行的操作
Doesn't work, will screw up your browser