For debugging purposes, my web application shows the user’s browser, version and operating system on the bottom of every page – this is done in Javascript.
In development and testing using IE9, the browser and version appear perfectly.
Three instances of the live application are running on the same webserver. I noticed on only ONE of them, rounded corners dont show up – and neither do shadows – and the browser is detected as IE8 (when using IE9) and the compatibility view button is missing!
Any ideas how to fix this? Thanks!
Is it possible you have the developer tools open for the site and you have selected Internet Explorer 8 for the “Browser Mode” or “Document Mode”?
If not, look for a rogue meta tag in your HTML: