My code

const CDP = require('chrome-remote-interface');
CDP(async (client) => {
    const {Log, Page, Runtime, Network, Console} = client;
    try {
        await Network.enable();
        await Page.enable();

        await Log.enable();
        await Log.clear();
        Log.entryAdded(({entry}) => {
            console.log(entry);
            /*if (entry.level === 'error' && entry.source === 'javascript') {
                console.log(entry);
            }*/
        });

        await Console.enable();
        await Console.clearMessages();
        Console.messageAdded(({entry}) => {
            console.log(entry);
            /*if (entry != undefined && entry.level === 'error' && entry.source === 'javascript') {
                console.log(entry);
            }*/
        })

        await Page.navigate({url: url});
        await Page.loadEventFired();

        //console.log(html);
    } catch (err) {
        console.error(err);
    } finally {
        client.close();
    }

})

Please direct protocol-related questions to https://github.com/ChromeDevTools/devtools-protocol. crbug.com is for devtools as a part of the chromium, not about the protocol.