SWFUpload在火狐下的session问题

[javaltzh123]

使用SWFUpload上传文件，在IE下正常，在火狐下有session问题，
但不管我是URL后面加：upload_url :_context+"/ads/uploadImg;jsessionid="+sessionId,
还是使用post_params：post_params: {"JSESSIONID" :sessionId},
都不能解决SESSION问题，请问各位大神这是什么情况？很费解

版本：SWFUpload2.2+JSP+JDK1.6

 var swfu;
	window.onload = function() {
		var settings = {
			upload_url :_context+"/ads/uploadImg;jsessionid="+sessionId,
			//post_params: {"JSESSIONID" :sessionId},
	   		file_post_name:"filedata", 
	   		// File Upload Settings
	   		file_size_limit : "20MB", // 20MB
	   		file_types : "*.jpg;*.gif;*.png",//设置可上传的类型
	   		file_types_description : "所有文件",
	   		file_upload_limit : "0", //最大可以上传文件数量 0为不限制
	   		file_queue_limit : 0,
	   		prevent_swf_caching : true,//在相关的swf文件增加随机参数以避免Flash被缓存（建议打开，Flash被缓存已经导致太多问题了）
	   		custom_settings : {
				progressTarget : "fsUploadProgress",
				cancelButtonId : "btnCancel"
			},
			// Button settings
			button_image_url: "../../js/lib/SWFUpload2.2/swfupload/images/TestImageNoText_65x29.png",
			button_width: "65",
			button_height: "29",
			button_placeholder_id: "spanButtonPlaceHolder",
			button_text: '<span class="theFont">浏览</span>',
			button_text_style: ".theFont { font-size: 16; }",
			button_text_left_padding: 12,
			button_text_top_padding: 3,
			
			file_queued_handler : fileQueued,
			file_queue_error_handler : fileQueueError,
			file_dialog_complete_handler : fileDialogComplete,
			upload_start_handler : uploadStart,
			upload_progress_handler : uploadProgress,
			upload_error_handler : uploadError,
			upload_success_handler : uploadSuccess,
			upload_complete_handler : uploadComplete,
			queue_complete_handler : queueComplete,	
			flash_url : "../../js/lib/SWFUpload2.2/swfupload/swfupload.swf",
	   		debug: true
		};

		swfu = new SWFUpload(settings);
     };

[孟子E章]

参见类似的问题解决方法 http://bbs.csdn.net/topics/390913529

[javaltzh123]

引用 1 楼 net_lover 的回复:

参见类似的问题解决方法 http://bbs.csdn.net/topics/390913529

上面写法是没错的，没成功的原因是万恶的缓存问题，没获取到最新的页面导致的，感谢版主回复