Bypass Page Cache for Magento 2

In some cases we want to be able to bypass Magento's full page cache. For example, when profiling a page using Blackfire, we want to test the performance of the page without full page cache.

Installation

composer require phpro/mage2-module-bypass-page-cache

Key features

Configuration

To use this feature, you have to activate it in the backend Stores > Configuration > Advanced > System > Full Page Cache > Enable Full Page Cache Bypass

This setting is only available when you use the Built-in Cache. This feature is not relevant when you use Varnish.

Note: this is meant to be used on development and staging environments. Make sure this is disabled in production.

Blackfire

This module was built to be used with Blackfire.

When creating profiles in Blackfire, you need to be able to bypass the full page cache. Magento 2 does not provide an easy way to bypass the full page cache, so we created this module.

Blackfire adds the header X-Blackfire-Query when profiling over HTTP. When this header exists your request, the full page cache will be ignored.

Custom header

The module is created to work with the Blackfire header by default. If you want to use this feature, but need a different header, you can override the default configuration.

Add the following in the file config.xml of a project module.

<default>
    <system>
        <full_page_cache>
            <bypass_header>My-Custom-Header</bypass_header>
        </full_page_cache>
    </system>
</default>