November 2011
Intermediate to advanced
320 pages
10h 18m
English
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Inheritance for javascript: and vbscript: URLs
Scripting-related pseudo-URLs, such as javscript:, are a very curious mechanism. Using them to load some types of subresources will lead to code execution in the context of the document that attempts to load such an operation (subject to some inconsistent restrictions, as discussed in Chapter 4). An example of this may be
<iframe src="javascript:alert('Hi mom!')"></iframe>More interestingly (and far less obviously) than the creation of new subresources, navigating existing windows or frames to javascript: URLs will cause the inlined JavaScript code to execute in the context of the navigated page (and not the navigating document!)—even if the URL is entered manually or loaded from a bookmark.
Given this ...
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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.