U+FEFF: ZERO WIDTH NO-BREAK SPACE

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IndexU+FEFF (65279)
ClassFormat (Cf)
BlockArabic Presentation Forms-B
Java Escape"\ufeff"
Javascript Escape"\ufeff"
Python Escapeu'\ufeff'
HTML Escapes 
URL Encodedq=%EF%BB%BF
UTF8ef bb bf
UTF16feff