typecho ajax登陆 反回responseText返回的为html代码！

帐户密码为admin/123456

$.ajax({

url: "<?php $this->options->loginAction(); ?>",

data:{'name':'admin','password':'123456'},

type: "POST",

dataType:'json',

success:function(data){$('#errormsg').html("2");                     console.log(data);

},

error : function(data) {

$('#errormsg').html("1");                    console.log(data);

}

});

返回的:

readyState:4

status:200

statusText:parsererror

responseText:html代码

一直是error:function(data)

怎么解决