can jquery read the dom elements of external pages?

Is it possible t开发者_如何学Pythono read and parse the dom elements of third party websites like cnn.com (for e.g) so that I can get the div, a, p tags and read the position and size information?

jquery can parse and show information of the web page where your javascript code is running but if we provide an external web page to the .load command, can we parse the third party website page and read the DOM tree?

Thank you

No, you will be blocked by the Same Origin Policy, which restricts one site from accessing another on a different domain. You could set up a server-side script, in your preferred language, which would fetch the website on behalf of your JavaScript code, but this is more complex than just using AJAX to request the page.

I think you cannot access other domains' content with javascript due to security reasons. At least in secure browsers...