Returns list of render blocking resources from the Chrome trace

get-render-blocking-resources.js

const { readFileSync } = require("fs");
const rawData = readFileSync('./data.json');
const data = JSON.parse(rawData);

const res = data
    .filter(x => x.args?.data?.renderBlocking)
    .map(x => ({
        timestamp: new Date(x.ts),
        url: x.args.data.url,
        priority: x.args.data.priority,
        blocking: x.args.data.renderBlocking,
    }));

console.log(res);