Lightweight CORS web development tool allows developers to modify Ajax responses Access-Control-Allow-Origin:*.

Latest Version

Version
1.2.2
Update
June 14, 2019
Size
67.38KiB
Developer
Category
Users
4,000+
Rating
3.66667 ★
Manifest Version
2
Web Store Status
Languages Support
English (United States)
中文 (简体)
See more
Permissions
Storage
WebRequest

WebRequestBlocking
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CORS Helper Extension

Users can set different return values to allow users to be granted access to specified resources from different source servers.
Users can customize the value of the HTTP response header

It should be noted that when Access-Control-Allow-Origin is set to \"*\", the identity certificate cannot be attached.
Of course you can specify a unique Origin such as http://localhost:3000

Instructions
After installing the plugin, click the icon in the upper right corner to enable \"cross-source resource sharing\".

Custom configuration
After installing the plugin, click the icon in the upper right corner and click \"Customize\" to enter the configuration page.

The \"HTTP Response Header\" page allows you to add custom Access-Control-* header information to the HTTP response header
\"White List\" page allows you to customize the website for applying rules
Read more

Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx", "manifest_version": 2, "name": "CORS Helper", "description": "Lightweight CORS web development tool allows developers to modify Ajax responses Access-Control-Allow-Origin:*.", "version": "1.2.2", "homepage_url": "https://github.com/jhrxx/CORS-Chrome-extension", "default_locale": "en_US", "browser_action": { "default_icon": "off.png", "default_popup": "popup.html", "default_title": "Cross-Origin Settings" }, "icons": { "16": "icon-16.png", "48": "icon-48.png", "128": "icon-128.png" }, "background": { "scripts": ["background.js"] }, "options_ui": { "page": "options.html", "chrome_style": false, "open_in_tab": true }, "content_security_policy": "script-src 'self' 'unsafe-eval'; object-src 'self'", "permissions": [ "storage", "webRequest", "", "webRequestBlocking" ]}
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How to download and manually install CORS Helper extension for Chrome

Looking for a way to install CORS Helper extensions for Chrome, you can search for them in the Chrome Web Store, clicking the "Add to Chrome" button, and following the straightforward process.

However, you may need to install CORS Helper extensions manually, this article outlines two simple methods to effortlessly install CORS Helper extensions, whether they come as unpacked folders in compressed formats like .zip or as .crx files.

Method 1: Download CORS Helper extension and manually install through Drag &Drop

If you ever need to manually install a CORS Helper extension for Chrome, don't worry, it's a simple process. Just follow these easy steps, and you will have your extension ready to use in no time.

Step 1: Download the CORS Helper Extension by clicking the "Download CRX" button on the website.

Look for the CORS Helper extension you wish to install. Go to the website and download the CORS Helper extension package, which is usually a .CRX file and comes in a zipped file. Here ".crx" file is the format for CORS Helper extension that contains all the data.

Step 2: Extract &Arrange Files

Once the file is downloaded, extract that file into its own folder. Similarly, give that extension files a permanent home. In other words, keep it in a folder that you don't accidentally delete it because these files will be needed to make that extension work.

Step 3: Go to the Chrome Extensions Page

Open Google Chrome and in the address bar, type chrome://extensions; it will open the Google Chrome extensions page. Make sure that "My extensions" is selected in the sidebar.

Step 4: Drag and Drop the Extension

Now, go to the folder where you extracted the CORS Helper extension and drag &drop the extension file from there anywhere onto the extension page within Google Chrome.

Step 5: Complete the Installation

Once you drag and drop the extension file, follow the steps that Google Chrome takes you through. Similarly, if the extension file is of .crx file format, you will be required to review the permissions and then add the extension.

Now, you can manage that added extension as you would like to with any other Chrome extension that you added through Chrome Webstore. Its icon will also appear in the Google Chrome Menu on the right side of the address bar once you activate it.

Method 2: Download CORS Helper extension for Chrome and install in Developer Mode

This is another method to install CORS Helper extension manually, but the twist is that here, you install by enabling the developer mode option provided in Google Chrome. This mode is commonly used for testing extensions or running unpublished tools.

Step 1: Download the CORS Helper extension file

Select and download the CORS Helper extension by clicking the 'Download CRX' button on the website.

Step 2: Extract the downloaded contents

Convert the file to a ZIP file if it is in CRX format then extract the CORS Helper extension zip file or folder that you downloaded. Make sure you extract it using the same folder name and keep it safely in another folder, so you don't delete it by mistake. The extracted folder will be needed to keep your CORS Helper extension running.

Step 3: Open Chrome Extension Setting Page

In the address bar of Google Chrome, type chrome://extensions and open the Chrome Extension Page.

Step 4: Enable Developer Mode

After opening the Chrome Extension page, look at the top right side, and you will find the toggle option of "Developer mode."Simply enable that developer mode option.

Step 5: Load the Unpacked Extension

Once you enable the developer mode option, you will see the menu of Load Unpacked, Pack Extensions and Update. From that, select the option "Load unpacked."

Step 6: Select the Extension Folder

Once the pop-up opens upon clicking Load unpacked, select the CORS Helper extension directory and click on the "Select Folder "button.

Step 7: Confirm and Install

After you select an extension folder of a Google Chrome extension you're installing manually, confirm its installation for the final time and let the installation complete.

Conclusion

Here we've made a step-by-step guide on How to manually install CORS Helper extension in 2 ways. We hope this guide proves helpful.

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User reviews

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Bryan Tan (ID: 0000009a01ebfaf3) Voted 1 ★ - Updated 06/11/2023 not working, try this one https://chrome.google.com/webstore/detail/allow-cors-origin/igomecoafaibkpelmljakiklmgdajojk

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behrad jafari (ID: 000000df0cc069fc) Voted 5 ★ - Updated 09/07/2020 only extension that worked