May 2018
Intermediate to advanced
492 pages
12h 3m
English
Content preview from Node.js Web Development - Fourth Edition
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Mitigating XSS attacks with Helmet
XSS attacks attempt to inject JavaScript code into website output. With malicious code injected into another website, the attacker can access information they otherwise could not retrieve. The X-XSS-Protection header prevents certain XSS attacks, but not all of them.
app.use(helmet.xssFilter());
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.