HTTP/2 Push

Introduction

Site Performance, Performance, Site speed

HTTP/2 Push is a feature of the latest HTTP revision that enables the web server to preemptively send resources to the requesting client before the client knows that they are needed. As a result, the number of round-trips that are required to fully load a web page may be reduced, resulting in a potentially large performance boost (especially on slow cellular networks).

Full description
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Introduction

System Requirements

Several system requirements must be met before you can make appropriate use of this plugin:

PHP 7.1+
Joomla! 3.8+
HTTP/2 web server with push capability:
1. Apache 2.4.17+ (with mod_http2)
2. NGINX 1.13.9+

Installation

Click here to download the latest release of the plugin. Once the plugin is downloaded, navigate to 'Extensions' > 'Manage' > 'Install' on your Joomla! site, then click on the 'Upload Package File' tab. Next, drag the downloaded ZIP archive into the upload area to install it.

Tip: For extra security, make sure that the "Verified" tag appears in the left column on the release page. This means that the release was signed and validated using GPG.

Configuration

Configuration for this plugin can be found on your Joomla! site under 'Extensions' > 'Plugins' by searching for 'HTTP/2 Push' and clicking on the plugin name.

Once you reach the plugin configuration page, hover over the field labels for a detailed description of each.

Implementation Details

This project is a system plugin for Joomla! that intercepts the onAfterRender event. Once the event is triggered, the plugin parses the HTTP response body to find any applicable resources that can be configured for preload or preconnect.

The plugin then sets a Link header to inform the web server about the resulting resources. Once the web server is made aware, all (or some) of the resources are pushed to the client.

Credits

This plugin was originally written by Clay Freeman for Bluewall, LLC.

License

This program is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with this program. If not, see http://www.gnu.org/licenses/.