http //a/ 30 30 fixed code example

Example: http://a%%30%30

Tom Scott explains this beautifully in his video: The Link That Can Crash Chrome: http://a/%%30%30

Steps:

1.    http://a/%%30%30 becomes http://a/%00 because %30 is 0
2.    http://a/%00 becomes http://a/<NULL> because %00 is the NULL character