This is a plugin to be used with your Prerender server to avoid requesting to any blacklist extensions such as image, css, fonts etc
npm install prerender-extension-blacklist --save
server.js
const prerender = require('prerender');
const server = prerender();
server.use(require('prerender-extension-blacklist'));
server.start();
Test it
curl http://localhost:3000/render?url=https://www.example.com/
List of extension separate by ","
export BLACKLISTED_EXTS=css,jpg
For example:
export BLACKLISTED_EXTS=ico,jpg,jpeg,png,ttf,eot,otf,woff,woff2,gif,svg,pdf,css,svg