有关getJSON在IE下失效的问题

$('#letter-b a').click(function(){
		
		$.getJSON('__PUBLIC__/b.json',function(data){
			
			$.each(data,function(entryIndex,entry){
				var html = '<div class="entry">';
				html += '<h3 class="term">' + entry['term'] + '</h3>';
				html += '<div class="part">' + entry['part'] + '</div>';
				html += '<div class="deFinition">';
				html += entry['deFinition'];
				html += '</div>';
				html += '</diiv>';
				$('#dictionary').append(html);
			});
		});
		return false;
	});

写了一个ajax的函数，结果在Chrome和IE中什么反应也没有，

[{
 "term": "BACCHUS","part": "n.","deFinition": "A convenient deity invented by the...","quote": [
    "Is public worship,then,a sin,","That for devotions paid to Bacchus","The lictors dare to run us in,"And resolutely thump and whach us?"
    ],"author": "Jorace" 
},{
 "term": "BACKBITE","part": "v.t.","deFinition": "To speak of a man as you find him when..."
},{
 "term": "BEARD","deFinition": "The hair that is commonly cut off by ..."
}]

检查了一下，文件中开始和结尾的括号[]没有加上去。加上去之后，chrome下可以正常显示，在IE下还是没有反应。然后再调用的PHP文件中定义了字符编码格式，IE下正常。

header ( 'Content-Type: text/javascript; charset=UTF-8' );
		$this->display();

（lnmp环境+thinkPHP）