does http //a/ 30 30 still work 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