LiveHeader

Add custom HTTP headers to requests and responses.

LiveHeader is a Chrome extension that lets you add custom HTTP headers to requests and responses. Save settings in profiles for different purposes, then narrow down where they apply by URL pattern and HTTP method. Open the settings popup from the browser toolbar. You can check or change your settings without leaving the current page or switching to a separate full-page settings screen. When you’re done, simply close the popup. Profiles make it easy to manage and switch between header configurations, such as when testing a website or API during development or working with multiple test environments. Reuse your settings instead of re-entering headers each time, and control which configurations apply to which traffic. Features - Add request and response headers - Create and switch between multiple profiles - Enable or disable profiles, headers, and filters individually - Target requests by URL pattern - Target requests by HTTP method - Use * as a wildcard in URL patterns - Validate header names and URL patterns URL patterns match part of a URL, so you can target URLs containing a specific hostname or path. You can also specify an HTTP method to apply settings to requests such as GET or POST. How to use Click the LiveHeader icon in the toolbar to open the popup and create a profile. Add the request or response headers you want to use, then specify URL patterns or HTTP methods as needed. You can also enable or disable profiles, individual headers, and filters. A profile with no enabled filters applies to all requests. To limit where a profile applies, add a URL pattern. Data and permissions Profiles and header values are stored in Chrome’s local extension storage. The extension does not send your settings to the developer’s servers. LiveHeader requires permission to match URLs across all websites so it can add configured headers to matching traffic. Header values may be sent to the websites that match your filters. If you configure sensitive values, check your URL patterns and active profiles to make sure they apply only to the intended sites.