using rest get and getting error

im trying to use the REST GET and i get error 

im trying to send this get request:

http://www.israelpost.co.il/zip_data2.nsf/SearchZipJSON?OpenAgent&Location=חיפה&POB=&Street=חוחית&House=1&Entrance=

and for some reason i get invalid info but when i put this same get request i get valid response

i would love some help

tyvm