Check your browsers settings. You are only seeing the cached page and not the rebuilt one on the server. A common enough problem for many people who do not understand how their browsers work.
Make sure that your browser is set to 'Update pages once per session' or whatever is equivalent in your browser.
Now off to Computer and Internet Issues with you!
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Capt PPRuNe aka Danny Fyne
The Professional Pilots RUmour NEtwork