prerender.js
Prerender on hover in any browser.
I made this because the current solutions for preloading pages the user hovers over do not apply to links contained in buttons, like a sign up or log in page. prerender.js is basically instant.page but prerendering and for all browsers.
Project Features
Prerendering loads all the assets of a page before the user navigates to that page. Conventionally, prerendering is like opening the URL in a hidden tab and then showing that hidden tab once the user clicks on it.
prerender.js is a way to preload any link the user hovers over. Based on a prerendering polyfill, it loads the next page in a hidden iframe. If that link is in a button or link element, prerender.js runs. If the user is on mobile, prerender.js runs. If the user's browser is Internet Explorer 8, prerender.js runs. prerender.js focuses on the guarantee of web performance for all users.
Data
A page on my site without prerender.js had 1.37s page load. With prerender.js that same page had a 600ms page load. A website where this is already live is under development, but you can ask me about it later when it's done.
Installers
For Node:
npm i prerender_all
For the browser:
<script src="https://cdn.jsdelivr.net/npm/prerender_all@1.0.0/prerender.js"></script>
Downloading
You can also self-host by downloading prerender.js from Github and including it in your webpage as a script. Self-hosting is as simple as that - wherever your html files are, put the code for prerender.js in that folder too.
Documentation
To use prerender.js with buttons, check out buttons.js in the file directory. Links do not require any configuration to enable prerender besides including the code for the script on the page.
Contributors
If you want to make the functionality for buttons better, make a pull request to the Github repo. If you think I missed something, make a pull request to this repo! I haven't been using this for a long time so I would love feedback and improvement. If you find a bug, try letting me know in the Issues tab.