I’m setting Last-Modified and ETag Headers, but it seems that the server is removing them? Why are they being removed? Is there any way to ensure the headers are actually sent?
<?php header( "Cache-Control: max-age=10" ); header( "Last-Modified: " . gmdate( "D, d M Y H:i:s" ) . " GMT" ); header( "ETag: " . time() ); echo "Hello World";
Demo page is here. This is a brand new site and account. I haven’t modified any settings yet.