CORS Unblock

CORS Unblock

ID: lfhmikememgdcahcdlaciloancbhjino

Supported Languages

🇺🇸English

Extension Info & Metadata

Status
Active
Version
0.5.2
Size
0.19 MB
Rating
4.1/5
Reviews
175
Users
200,000
Type
Extension
Updated
Jun 3, 2025
Category
Developer tools
Price
Free
Featured
No
Visibility
Listed
Mature
No
By Google
No
Trusted
Yes

Publisher Contextual Analysis

Trusted
Author
balvin.perrieView Profile
MX records exist
Yes
Domain exists
Yes
Is disposable
No
Is role-based
No
Mailbox exists
Yes
Website
Visit
Total Extensions
23
Active
16
Obsolete
7
Listed
20
Unlisted
3
Total Users
364,893
Screenshot 2
Screenshot 3

No more CORS error by appending 'Access-Control-Allow-Origin: *' header to local and remote web requests when enabled

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 Access-Control-Expose-Headers: request initiator or * Additional Features: 1. It can remove the following CSP-related headers: "Content-Security-Policy", "Content-Security-Policy-Report-Only", "X-WebKit-CSP" and "X-Content-Security-Policy". 2. It can overwrite the returned 4xx status code from the server. Use this feature when a server does not support a method, but you want to pretend it does. 3. It can append necessary headers to pretend websites (local or remote hosts) support SharedArrayBuffer class. 4. It can permit cross-origin frame embedding (by removing the "X-Frame-Options" header) to simplify remote page embedding during local development. 5. It can include or exclude the "referer" and "origin" headers when a server is sensitive to them to work appropriately. 6. The extension optionally uses the "chrome.debugger" to overwrite 4xx status codes (in case a server does not support a method, you can use this feature to pretend the server accepts a response or supports an unsupported method). 7. The extension also optionally fixes CORS policies of redirected URLs. -- It is important to note that this extension fixes preflight requests to permit access to any custom header (when enabled). Links: 1. For reporting bugs, please use the link https://github.com/balvin-perrie/Access-Control-Allow-Origin---Unblock. 2. To have better control over CSP (content-security-policy), try my https://chrome.google.com/webstore/detail/csp-unblock/lkbelpgpclajeekijigjffllhigbhobd.

Item
Type
Severity
Description
declarativeNetRequest
Permission
Critical
This permission allows the extension to define rules to block, redirect, or modify network requests. Rated Critical because it can control all network traffic, potentially blocking security updates or redirecting to malicious sites.
debugger
Permission
Critical
This permission grants the extension ability to debug and control other extensions and browser tabs. Rated Critical because it can access and modify other extensions' internal state, inject code, and access sensitive data from any tab.
<all_urls>
Host
Critical
Broad host access — the extension can read/modify content on every website.
Broad Host Permissions
Risk Factor
High
This extension has broad host permissions allowing it to access many or all websites.
storage
Permission
Medium
This permission allows storing data locally in the browser. Rated Medium because it can persist sensitive user data, track user activities over time, and potentially store malicious payloads.
URLs
13
IPv4
0
IPv6
0

URLs

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clients2.google.com/service/update2/crxhttps://clients2.google.com/service/update2/crx
webextension.org/listing/access-control.htmlhttps://webextension.org/listing/access-control.html
www.w3.org/1999/02/22-rdf-syntax-nshttp://www.w3.org/1999/02/22-rdf-syntax-ns#
ns.adobe.com/tiff/1.0/http://ns.adobe.com/tiff/1.0/
iptc.org/std/Iptc4xmpExt/2008-02-29/http://iptc.org/std/Iptc4xmpExt/2008-02-29/
ns.adobe.com/xap/1.0/mm/http://ns.adobe.com/xap/1.0/mm/
ns.adobe.com/xap/1.0/sType/ResourceEventhttp://ns.adobe.com/xap/1.0/sType/ResourceEvent#
ns.useplus.org/ldf/xmp/1.0/http://ns.useplus.org/ldf/xmp/1.0/
www.gimp.org/xmp/http://www.gimp.org/xmp/
purl.org/dc/elements/1.1/http://purl.org/dc/elements/1.1/
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