Why does Google prepend while(1); to their (private) JSON responses?  For example, here's a response while turning a calendar on and off in Google Calendar:  while(1);[['u',[['smsSentFlag','false'],['hideInvitations&...
I need to display external resources loaded via cross domain requests and make sure to only display "safe" content.   Could use Prototype's String#stripScripts to remove script blocks. But handlers such as onclick or onerror are still t...
Which is better to do client side or server side validation?  In our situation we are using    jQuery and MVC.   JSON data to pass between our View and Controller.     A lot of the validation I do is validating data as users enter it. For example I...
In the video below, at time marker 21:40, the Microsoft PDC presenter says it's important that all JSON be wrapped so it's not a top level array:  https://channel9.msdn.com/Events/PDC/PDC09/FT12  What is the risk of an unwrapped top level a...
I am using Backbone.js and the Tornado web server.  The standard behavior for receiving collection data in Backbone is to send as a JSON Array.  On the other hand, Tornado's standard behavior is to not allow JSON Array's due to the followin...
I'm trying to implement JWT in my authentication system and I have a few questions. To store the token, I could use cookies but it's also possible to use localStorage or sessionStorage.  Which would be the best choice?   I have read that JW...
I need to make an AJAX request from a website to a REST web service hosted in another domain.  Although this is works just fine in Internet Explorer, other browsers such as Mozilla and Google Chrome impose far stricter security restrictions, which...
Our web application (based on HTML5, SVG & JS) runs fine in all the browsers except Google Chrome.  In Google Chrome, the normal javascript events run fine, however, all the javascript events attached to the iFrame are not executed. We get the...
Imagine a space shooter with a scrolling level. What methods are there for preventing a malicious player from modifying the game to their benefit? Things he could do that are hard to limit server-side is auto-aiming, peeking outside the visible are...
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