Modify Header Value (HTTP Headers) is a web development extension for chrome. it's a free extension and is featured in Developer Tools, it has 40,000+ active users since released its first version, it earns an average rating of 3.27 from 37 rated user, last update is 991 days ago.
Modify Header Value (HTTP Headers) is an extension that can add, modify or remove an HTTP-request-header for all requests on a desired website or URL. This Addon is very useful if you are an App developer, website designer, or if you want to test a particular header for a request on a website. Key features: 1. Easily add, modify or remove a header for any request on desired domains. 2. For a complete list of HTTP headers, please take a look at the list of all HTTP Header Fields on the Wikipedia page (https://en.wikipedia.org/wiki/List_of_HTTP_header_fields). 3. Clicking on the Toolbar icon opens a UI to quickly switch the Addon ON or OFF, or open the options page. 4. Each header item has several options to adjust (see add-on's Options page for details) 5. You can add several header items and active or inactive them separately. 6. An example in the options page shows a tutorial on "How to add a custom header". Note: to report bugs, please visit addon's homepage (https://mybrowseraddon.com/modify-header-value.html) and fill out the bug report form.
You could download the latest version crx file or older version files and install it.
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I was comparing this with Requestly and liked that it was free, but it doesn't seem to be completely compatible with HTTP/2 protocol. No JS/CSS resources would load from an IIS website I was working on and I kept seeing a "net::ERR_HTTP2_PROTOCOL_ERROR" logged. I disabled this extension and the issue was immediately resolved. I can't use this if it's going to randomly cause errors by preventing Chrome from consistently loading resources.
Doesn't work sometimes. At random intervals, this extension stops doing the one thing it's designed to do: inject headers in browser requests. There is really no consistency to this, I had to simply disable the extension and use another. Since this one has URL filtering(and the other one doesn't) I'm still leaving this as installed. Otherwise, there's no real reason for me to keep this. Consistency is vital.
Not a very friendly UI yeah but it really does work, nice job!