How to achieve Keep-Alive for all elements?

[Guest postcd]

Hello,

 

it appears some elements of the ICPH webpage have keep-alive and some not.

 

I want to ask how to achieve all are loaded with keep-alive?

 

htaccess contains:

Quote:

<ifModule mod_headers.c>

Header set Connection keep-alive

</ifModule>

thx

 

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