Fixing CORS errors (Access-Control-Allow-Origin)

There comes a time in developers life when he gets sh* load of:

XMLHttpRequest cannot load http://api.com. Origin http://api.com is not allowed by Access-Control-Allow-Origin.

Then you can do

./Applications/Google Chrome.app/Contents/MacOS/Google\ Chrome --disable-web-security

Or you can add header to your api.com responses with

Access-Control-Allow-Origin: *

And then in your time you can also read... http://www.w3.org/TR/cors/#access-control-allow-origin-response-header