Back button shows an old (cached?)page

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Hi all,

I have a strange issue with an ASP.NET website I am building.

1. If I type the homepage URL in manually, say localhost:8080, it displays the page as expected.

2. If I visit any other page, that other page displays as expected.

3. If I click the back button to go back to localhost:8080, it is rendering an older version of the page

4. If I press CTRL+F5, or enter in the browser URL bar, it refreshes and displays the homepage as expected.

5. If I repeat 1-4, but add the default page to the URL (localhost:8080/default.aspx), everything works as expected.

I initially thought it was a caching issue, but deleting the browser cache, or implementing this code in the site master page did not make any difference.

I am debugging with IE9 and IIS. The default VS2010 debugger had the same problem though.

Has anyone run into this before?

Thank you.

Posted 6-May-13 14:01pm

MarkB777

Updated 6-May-13 14:02pm

v2

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2 solutions

Solution 1

Your browser is working as designed.

Posted 6-May-13 14:08pm

_Damian S_

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MarkB777 6-May-13 21:42pm

Could you please elaborate?

If I browse to codeproject.com then visit another site, I would not expect to see an old version of the codeproject.com homepage if I pressed the back button, and would certainly not expect to have to press CTRL+F5 to refresh the page.

_Damian S_ 6-May-13 23:49pm

This is exactly what would happen... Your browser will first check if there's a page in the cache that is the page you are navigating to, then it will display it. There are exactly issues as you describe (requiring a CTRL-F5) on here from time to time - particularly after Chris and the hamsters roll out a new version...

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MarkB777 · Accepted Answer · 2013-05-06T17:00:00

An easy way around this issue is to force IIS to add the default page to the URL.

In Visual Studio..

* Properties -> Web
* Set the 'Start action' to open your default page (in my case Default.aspx)

The downside is when people visit your site they will set www.mysite.com/Default.aspx in the URL bar, rather than just www.mysite.com. If anyone knows a way around that I will be interested to know.