December 2011
Beginner
384 pages
9h 38m
English
Content preview from Web Application Security, A Beginner's GuideBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Defining the Same-Origin Policy
The same-origin policy is essentially an agreement among browser manufacturers—mainly Microsoft, Apple, Google, Mozilla and Opera—on a standard way to limit the functionality of scripting code running in users’ web browsers. You might wonder why this is a good thing and why we would want any limits on scripting functionality. If so, don’t worry; we’ll go into this in detail in the next section. Until then, please trust us that without the same-origin policy, the World Wide Web would be more like a Wild West Web where anything would go, no data would be safe, and you’d never even think about using a credit card to buy something there.
In short, the same-origin policy states that when a user is viewing a web page ...
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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.