Post Made Community Wiki by user1106925
You have an illegal invisible character at the end of this line...
$('#test').append("Test");// <-- right before this comment
Delete the line entirely, and retype it, or make sure the cursor is after all characters on the line, and hit backspace until you see characters actually being removed.
This happens sometimes if you copy & paste code from jsFiddle.
The charCode of the offending character is 8203.
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