July 2017
Beginner to intermediate
340 pages
7h 43m
English
Content preview from Python Microservices Development
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Cross-origin resource sharing
Allowing client-side JavaScript AJAX to perform cross-domains requests is a potential security risk. If the JS code that's executed in the client page for your domain tries to call another domain that you don't own, it could potentially run malicious JS code and harm your users.
That is why all browsers in the market have a Same-Origin Policy when an asynchronous call is made. They ensure that the request is made on the same domain.
Beyond security, it is also a good way to prevent someone from using your bandwidth for their web app. For instance, if you provide a few font files on your website, you might not want another website to use them on their page, and use your bandwidth without any control.
However, ...
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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.
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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.