Back button shows an old (cached?)page

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C#

ASP.NET

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.