jQuery.cookie.js中cookie设置遇到的问题

jQuery.cookie.js文件内容相信看到这的朋友都有了：

jQuery.cookie = function(name, value, options) {

if (typeof value != 'undefined') { // name and value given, set cookie

options = options || {};

if (value === null) {

value = '';

options.expires = -1;

}

var expires = '';

if (options.expires && (typeof options.expires == 'number' || options.expires.toUTCString)) {

var date;

if (typeof options.expires == 'number') {

date = new Date();

date.setTime(date.getTime() + (options.expires * 24 * 60 * 60 * 1000));

} else {

date = options.expires;

}

expires = '; expires=' + date.toUTCString(); // use expires attribute, max-age is not supported by IE

}

var path = options.path ? '; path=' + options.path : '';

var domain = options.domain ? '; domain=' + options.domain : '';

var secure = options.secure ? '; secure' : '';

document.cookie = [name, '=', encodeURIComponent(value), expires, path, domain, secure].join('');

} else { // only name given, get cookie

var cookieValue = null;

if (document.cookie && document.cookie != '') {

var cookies = document.cookie.split(';');

for (var i = 0; i < cookies.length; i++) {

var cookie = jQuery.trim(cookies[i]);

// Does this cookie string begin with the name we want?

if (cookie.substring(0, name.length + 1) == (name + '=')) {

cookieValue = decodeURIComponent(cookie.substring(name.length + 1));

break;

}

}

}

return cookieValue;

}

}

向cookie中设置一个值后，另一个页面取不到cookie的值：
http://test.com/a/index.html中$.cookie('cookiename', 'test_val', {expires: 7, path: '/', domain: 'test.com', secure: true});

在http://test.com/b/index.html中$.cookie('cookiename')返回为空，而http://test.com/a/test.html中确返回 test_val，弄半天，domain设置没错，path也正确，，，，翻看各种api和各种搜索，，，还是找不到答案，我去！！！！！！！！

折腾N久，，，一步步测试，，，将secure设置成false后，，，能读取到，真是发现新大陆一样。。。。我擦！！！！

rocord下来。。。。。。。。