Uncaught Error: SECURITY_ERR: DOM Exception 18

Question:

I get the following error in Chrome's developer tools window when I try to set a cookie using this jQuery plugin: Uncaught Error: SECURITY_ERR: DOM Exception 18 What does this error mean and how can I fix it? I get the same error when I use this jQuery plugin.

Answer:

You're most likely using this on a local file over the file:// URI scheme, which cannot have cookies set. Put it on a local server so you can use http://localhost.