node-metainspetor fetch in Node.js not executing

I have a simple web scraping script in Node.js that I'm trying to run in a loop:

var insp = require('node-metainspector');
var client = new insp("http://www.google.com", { timeout: 99999 });
var sleep = require("thread-sleep");

client.on("fetch", function(){
    console.log("The title is:");
    console.log(client.title);
});

client.on("error", function(err) {
    console.log(err);
});

while(true) {
    console.log("Checking...");
    client.fetch();
    sleep(10000);
}

When I run client.fetch() outside of the loop it works perfectly fine, but whenever it's in a loop it doesn't work. There's no error thrown (I checked with try-catch). The rest of the lines in the loop execute. Why is this happening and how can I fix it?

via Shibolet 3