5
votes
3answers
350 views

Is my webserver allowing pre-fetching?

I have an image based website that hosts multiple galleries. When a user clicks one of the images the views property for the particular image is incremented. However, I noticed when using Firefox ...
5
votes
2answers
2k views

Is the Last-Modified HTTP header required for browser caching?

When I unset the Last-Modified header in Apache (ETags are also disabled), Firefox (4.01) will not cache any file regardless of whether I set a future Expires header or enable the Cache-Control ...