November 2011
Intermediate to advanced
320 pages
10h 18m
English
Content preview from The Tangled WebBecome 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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Chapter 11. Life Outside Same-Origin Rules
The same-origin policy is the most important mechanism we have to keep hostile web applications at bay, but it’s also an imperfect one. Although it is meant to offer a robust degree of separation between any two different and clearly identifiable content sources, it often fails at this task.
To understand this disconnect, recall that contrary to what common sense may imply, the same-origin policy was never meant to be all-inclusive. Its initial focus, the DOM hierarchy (that is, just the document object exposed to JavaScript code) left many of the peripheral JavaScript features completely exposed to cross-domain manipulation, necessitating ad hoc fixes. For example, a few years after the inception of SOP, ...
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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.