<If "%{REQUEST_FILENAME} == '%{DOCUMENT_ROOT}/manifest.appcache'">
    ExpiresActive On
    ExpiresDefault "access"
</If>

<If "%{REQUEST_FILENAME} == '%{DOCUMENT_ROOT}/cache.manifest'">
    ExpiresActive On
    ExpiresDefault "access"
</If>

<If "%{REQUEST_FILENAME} == '%{DOCUMENT_ROOT}/app.manifest'">
    ExpiresActive On
    ExpiresDefault "access"
</If>

AddType text/cache-manifest .appcache
AddType text/cache-manifest .manifest