各位前辈好，现在有个问题想请教各位。
现在又两个网站，第一个网站website1负责前台显示，经过下拉菜单或者可选项之后点击“显 示”按钮，发送一个url连带参数到网站2website2，网站2主要基于XML和jQuery显示数据，现在的问题是，在网站2的情况下，点击IE或 者FF上的Back按钮，会出现如下错误。之前使用另外一个网站2，没有问题，现在是一个新产品，主要是xml和jQuery就会出现这个问题，请问如何 解决呢？
IE:
Webpage has expired
Most likely cause:
•The local copy of this webpage is out of date, and the website requires that you download it again.
Something to try:
Click on the Refresh button on the toolbar to reload the page. After refreshing, you might need to navigate to the specific webpage again, or re-enter information.
FF:
Document Expired
This document is no longer available.
The requested document is not available in Firefox's cache.As a security precaution, Firefox does not automatically re-request sensitive documents.Click Try Again to re-request the document from the website.
多谢。