It appears that IE currently does not recognize a local array as the source and given out error: "Invalid type of source, must be a string. e.g. http://www.google.com?q=:my_keyword".
The statement "this.source.constructor.name" returns "undefined" for IE while another browser like Chrome would correctly identify an array.
It appears that IE currently does not recognize a local array as the source and given out error: "Invalid type of source, must be a string. e.g. http://www.google.com?q=:my_keyword". The statement "this.source.constructor.name" returns "undefined" for IE while another browser like Chrome would correctly identify an array.