Issue: With EPM Workspace in Internet Explorer, icons flicker and seem to be downloading constantly. This can occur if Internet Explorer does not cache static content when SSL and HTTP compression on the Web server are enabled.
Solution: Follow these steps to apply content expiration headers at the Web server level for static content:
Locate the static content folder in the Web server directory structure.
Click Properties, and then select the HTTP Headers tab.
Select “Enable content expiration,” then select “Expire after,” and then specify 1 day.