August 2024
Intermediate to advanced
186 pages
4h 3m
English
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Specify a Content Security Policy
A Content Security Policy[71] (CSP) detects and prevents some types of attacks, including Cross-Site Scripting (XSS). It can also report attempted attacks.
A CSP can be enabled with an HTTP response header or with an HTML meta tag. In both cases, the policy is described by a list of directives separated by semicolons.
Each directive is specified with a name and one or more values, all separated by a space. The values are CSP-specific keywords (such as self) and/or allowed URL patterns.
The following meta tag provides an example. It specifies that by default all resource types can only be downloaded from the current origin. An exception is made for images that can come from any origin as long as HTTPS is used. ...
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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.