README

This module clears the local browser cache once per unique visitor. It does so by send a Clear-Site-Data response header with a value of "cache", and sets a cookie called BrowserCacheCleared to prevent the header from being sent again.

To learn the reason for its existence, read this article →

Requirements

This plugin requires Craft CMS 4.0.0 or later, or 5.0.0 or later.

Installation

Install this module via composer.

composer require putyourlightson/craft-clear-browser-cache

Once installed, the module self-bootstraps and does not require any further setup.

Configuration

The module is configured to run only until a cut-off date, which is set to 2026-01-01 by default. After that date, the module will have no effect. This value can be overridden by setting a CLEAR_BROWSER_CACHE_CUTOFF_DATE environment variable in your .env file.

CLEAR_BROWSER_CACHE_CUTOFF_DATE=2025-09-01

Created by PutYourLightsOn.