Normal Description
http://validator.w3.org/ giv es following errors for meta tags output by ZK
Line 4, Column 47: Bad value Pragma for attribute http-equiv on element meta.
<meta http-equiv="Pragma" content="no-cache" />
Line 5, Column 42: Bad value Expires for attribute http-equiv on element meta.
<meta http-equiv="Expires" content="-1" />