return 404 if icon not found
return 404 if icon not found

newmanw/mage-server,newmanw/mage-server,newmanw/mage-server,jclark118/mage-server,ngageoint/mage-server,ngageoint/mage-server,ngageoint/mage-server,ngageoint/mage-server,jclark118/mage-server,jclark118/mage-server