注销后如何清除浏览器缓存（内存/磁盘缓存）？

Question

I use asp.net core mvc + js. One type of my pages have cache.

[ResponseCache(Location = ResponseCacheLocation.Client, Duration = 60)]
public async Task<IActionResult> StaticContent(string path)
{
    // code
}

I have a problem when user logout on this page. User sees his account after logout because page was cache. If refresh page cache clear and user does not see account.

I try location.reload(); on js when logout click but reload work earlier than logout work on server. I try change Vary header but I change Vary only page which I redirect after logout

How can I clear cache after logout? Any ideas?

Answer 1

As the King King says, if you enable the client cache, there is no way to tell the client side in the server-side. The only way is just tell the CX to clear the cache. Since once the browser obeys the cache rules you send here, the only opportunity you will have to retract your cache rules is the next time the browser requests the page.

Normally, the dynamic pages should not attempt to set client-side caching if you want them to stay dynamic.

Answer 2

I find answer on microsoft site https://docs.microsoft.com/en-us/aspnet/core/performance/caching/response?view=aspnetcore-5.0#responsecache-attribute They say don`t cache content which using user info.

I cache individual parts of page without account info. I use

<cache expires-after="" />

Thanks all

Answer 3

In your logout post, you can clear a session that may solve your problem.

HttpContext.Session.Clear(); //this will clear all session 
HttpContext.Session.Remove("sessionName"); //this will clear a specific session