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JavaScript AJAX Basics (retiring) AJAX and APIs Adding jQuery

Pol Sole
Pol Sole
8,795 Points
Posted by Pol Sole
Pol Sole
8,795 Points

Same origin-policy and CDNs?

I was wondering how you can load the jQuery library(or bootstrap or any other CDN) from a server outside your own without violating the Same-origin policy???

1 Answer

William Li
PLUS
William Li
Courses Plus Student 26,868 Points
William Li
William Li
Courses Plus Student 26,868 Points

The src attribute, surprisingly, is not constrained by the Same Origin Policy. This means that a script element can be created which can go to any server, fetch a script, and execute it. ~ Douglas Crockford (creator of JSON & author of [JavaScript, the good parts])

Source http://javascript.crockford.com/script.html