PHP Advent 2011: Cross-Origin Ajax with CORS

By  on  
Cross-Origin Ajax with CORS

I've had the honor of writing for this year's PHP Advent, blessing you all about Cross-Origin Requests with CORS:

There's no doubt that Ajax is one of the most exciting, useful, and necessary web technologies available to front-end developers. Unfortunately, it's also one of the most restrictive — especially when it comes to gathering content from other domains. Web developers are nothing if not persistent, so we've come up with a variety of ways to get around cross-origin restrictions, including JSONP, server-side proxies made with PHP, ProxyPass proxying, Flash transports, creative iFrame uses, and more. What many developers don't know is that there's a W3C specification called Cross-Origin Resource Sharing, or CORS, which provides a standard for cross-origin Ajax requests with minimal hassle.

That's my Christmas gift to you all!

Recent Features

  • By
    Being a Dev Dad

    I get asked loads of questions every day but I'm always surprised that they're rarely questions about code or even tech -- many of the questions I get are more about non-dev stuff like what my office is like, what software I use, and oftentimes...

  • By
    Facebook Open Graph META Tags

    It's no secret that Facebook has become a major traffic driver for all types of websites.  Nowadays even large corporations steer consumers toward their Facebook pages instead of the corporate websites directly.  And of course there are Facebook "Like" and "Recommend" widgets on every website.  One...

Incredible Demos

  • By
    Digg-Style Dynamic Share Widget Using MooTools

    I've always seen Digg as a very progressive website. Digg uses experimental, ajaxified methods for comments and mission-critical functions. One nice touch Digg has added to their website is their hover share widget. Here's how to implement that functionality on your site...

  • By
    Create a Simple Dojo Accordion

    Let's be honest:  even though we all giggle about how cheap of a thrill JavaScript accordions have become on the web, they remain an effective, useful widget.  Lots of content, small amount of space.  Dojo's Dijit library provides an incredibly simply method by which you can...

Discussion

  1. Eric

    The link to your post isn’t working ;) Nice article BTW, but 10 seconds too late! I just figured out that this should solve my problem with the help of our friend Google :( Nice to read that this is the way things will work for sure.

  2. Alex

    Hi David, can this this hide the httprequest referrer??

Wrap your code in <pre class="{language}"></pre> tags, link to a GitHub gist, JSFiddle fiddle, or CodePen pen to embed!