Category Archives: Ajax

Getting Around Same-Origin Policy in Web Browsers

Posted on April 23, 2011 by romkey

Web browsers enforce a security policy called “Same Origin Policy” in order to protect their users from attacks by malicious web sites. The “Same Origin” policy requires that any attempt by Javascript on a web page to access a web … Continue reading →

Posted in Ajax, Code, Security | Tagged , , , , , , , | 2 Comments

WebDev: jQuery, JSON, IE and Caching

Posted on November 2, 2008 by romkey

When you bookmark a listing the icon changes from a heart with a plus sign to a heart with a minus sign, the count of the number of times the the listing was bookmarked is updated and a message is displayed that confirms the item was bookmarked. … The first thing I tried was to make sure that my server returned a header in the response to tell the client not to cache the results. … GET is meant to be idempotent, no ill effects if it’s repeated (a request to move to position 8 is idempotent; a request to move to the next position is not). … Just add this to your jQuery initialization code: $.postJSON = function(url, data, callback) { $.post(url, data, callback, “json”); Changing my code to use postJSON() instead of getJSON() solved the problem. Continue reading →

Posted in Ajax, Code | Tagged , , , , | 1 Comment

Offline jQuery Documentation for MacOS X

Posted on October 30, 2008 by romkey

I don’t always have reliable online access when I’m coding – in particular, I was on a bus today for a couple of hours and didn’t always have Internet access. There are a couple of dashboard widgets for MacOS X which I found that helped out on the jQuery documentation front. … This widget is designed for browsing… click around in it, but don’t expect to search it. … This widget is designed for searching – if you know what you’re looking for, you can find it quickly. Continue reading →

Posted in Ajax, Code, Macintosh | Tagged , , , , | Leave a comment