When logged in to Spotfire server or Spotfire Web Player URL using the Internet Explorer browser, users are forced to enter the credentials every time even though the "Keep me logged in" checkbox is checked. However, it works with other browsers such as Google Chrome and Firefox.

Cause:
None of the current versions of Internet Explorer support max-age attribute for cookie, so if you want proper cookie persistence cross-browser, then stick to 'Expires' attribute.
Instead of Max-Age, Internet Explorer supports the Expires attribute from the ancient Netscape cookie specification.

For more information about HTTP cookie and what is the difference between Max-age and Expires attributes in cookie, refer to the link in the Reference field.