Support Article

Icons or images do not display in IE11

SA-40801

Summary



Icons or images do not display on the Internet Explorer 11 browser.


Error Messages



Not Applicable


Steps to Reproduce



Log in to the portal using Internet Explorer 11 browser through a proxy.


Root Cause



Content security policies were in place for the proxy which modified the HTTP response header. One of the settings had both Pragma: no-cache and Cache-Control: max-age. These two cache settings conflicted with each other. The Internet Explorer 11 browser could not handle this contradiction gracefully.




Resolution



Perform the following local-change:

Address the conflicting cache control directives.

Published May 9, 2019 - Updated October 8, 2020

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