JS History.back (); Problems with post-form data not being maintained

There are two general situations in which such problems are encountered:

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1. On the server side, such as PHP opened the session,Session_Start ();

The Session_Start () is used, and the current page is forced to not be cached.

The solution is as follows:

Add the header ("Cache-control:private") after your session_start function; Note that your PHP program cannot have any output before the bank.

There are also session-based solutions, which are preceded by a session_start

Session_cache_limiter (' NoCache ');//emptying the form

Session_cache_limiter (' private '); Do not clear the form until the session is in effect

Session_cache_limiter (' public '); Do not empty the form as if you did not use the session

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2. In the second case, the server does not open the session at all, with History.back (), and still does not maintain the form data,

The reason, the form form of the Action property must be filled out, even if it is action= "" must be filled!!! (ie is not required)

This article is from the "Half City" blog, please be sure to keep this source http://vabc1314.blog.51cto.com/2164199/1613477

JS History.back (); Problems with post-form data not being maintained