HTTP Header Spy enables you to inspect request- response headers and cookies right after page load with no extra clicks.

Latest Version

Version
2.0.49
Update
September 26, 2018
Size
149KiB
Developer
www.donationbasedhosting.org
Category
Users
10,000+
Rating
3.79032 ★
Manifest Version
2
Web Store Status
Languages Support
English
Nederlands
Español
русский
हिन्दी
中文 (简体)
See more
Permissions
Http://*/*
Https://*/*
Tabs
ActiveTab
Storage
WebRequest
See more

HTTP Header Spy Extension

Inspect HTTP headers and response times without opening the page inspector tool. View headers right in the page you are looking at.

★ Auto-hide information panels after specified time
★ Response times
★ Server IP
★ XHR and sub-frame requests
★ Headers also available in the browser action popup
★ Follow the full redirect path
★ Show HSTS requests
★ Colorful status indication icons
★ Inspect Form Data, Get parameters and Cookies
★ Micro mode shows just the chosen response headers
★ Position in one of the four corners of the window
★ Easy single-click highlighting of the headers
★ Choose between a light and a dark color-scheme
★ Filter headers to be shown
★ Highlight any string pattern in the header views
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Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx", "name": "__MSG_extensionName__", "short_name": "__MSG_extensionNameShort__", "version": "2.0.49", "manifest_version": 2, "minimum_chrome_version": "18", "description": "__MSG_extensionDescription__", "author": "Michiel Roos", "homepage_url": "http://www.michielroos.com/", "default_locale": "en", "permissions": [ "http://*/*", "https://*/*", "tabs", "activeTab", "storage", "webRequest" ], "background": { "scripts": [ "Resources/JavaScript/Google/buy.js", "Resources/JavaScript/library.js", "Resources/JavaScript/background.js" ], "persistent": true }, "browser_action": { "default_icon": { "19": "Resources/Icons/toolbarIcon19.png", "38": "Resources/Icons/toolbarIcon38.png" }, "default_title": "__MSG_extensionName__", "default_popup": "Resources/HTML/popup.html" }, "icons": { "16": "Resources/Icons/icon16.png", "48": "Resources/Icons/icon48.png", "128": "Resources/Icons/icon128.png" }, "oauth2": { "client_id": "344825410658-1hrj72o88dvpau57j8sdvhi6l01a8prg.apps.googleusercontent.com", "scopes": [ "https://www.googleapis.com/auth/chromewebstore.readonly" ] }, "options_ui": { "page": "Resources/HTML/options.html", "open_in_tab": false }, "options_page": "Resources/HTML/options.html", "content_scripts": [ { "js": [ "Resources/JavaScript/Mark/mark.es6.min.js", "Resources/JavaScript/library.js", "Resources/JavaScript/content.js" ], "matches": [ "http://*/*", "https://*/*" ], "run_at": "document_idle" } ], "web_accessible_resources": [ "Resources/HTML/plans.html", "Resources/HTML/thanks.html" ]}
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How to download and manually install HTTP Header Spy extension for Chrome

Looking for a way to install HTTP Header Spy 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 HTTP Header Spy extensions manually, this article outlines two simple methods to effortlessly install HTTP Header Spy extensions, whether they come as unpacked folders in compressed formats like .zip or as .crx files.

Method 1: Download HTTP Header Spy extension and manually install through Drag &Drop

If you ever need to manually install a HTTP Header Spy 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 HTTP Header Spy Extension by clicking the "Download CRX" button on the website.

Look for the HTTP Header Spy extension you wish to install. Go to the website and download the HTTP Header Spy extension package, which is usually a .CRX file and comes in a zipped file. Here ".crx" file is the format for HTTP Header Spy 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 HTTP Header Spy 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 HTTP Header Spy extension for Chrome and install in Developer Mode

This is another method to install HTTP Header Spy 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 HTTP Header Spy extension file

Select and download the HTTP Header Spy 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 HTTP Header Spy 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 HTTP Header Spy 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 HTTP Header Spy 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 HTTP Header Spy extension in 2 ways. We hope this guide proves helpful.

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User reviews

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Elvin Aslanov (ID: 0000008b97d365e5) Voted 5 ★ - Updated 02/09/2022 micro mode is awesome

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Furkan Ali Gör (ID: 000000b115d41f5f) Voted 5 ★ - Updated 11/27/2021 very good and works great

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Lakshitha Wickramage (ID: 000000e3380f20ae) Voted 5 ★ - Updated 06/30/2021 Nice Extension

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Mordechai Meisels (ID: 0000000fb95af750) Voted 2 ★ - Updated 12/10/2019 Did you care reading their hilarious privacy policy? I'm not giving my data to them! https://www.donationbasedhosting.org/privacy-policy/index.html

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Rais Patel (ID: 000000192b41c71d) Voted 1 ★ - Updated 04/13/2019 Totally useless