Convert href to all lowercase

I noticed that some of our users actually put in uppercase characters in the url, which causes the link to open in a new window when it should open in the same window.

Steps to replicate:

1.) On http://example.com, add a link the points to http://example.com/test
2.) Add another link that points to http://Example.com/test

The first will open in the same window, the second will open in a new window.

Maybe run the href through toLowerCase() first.