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Magic? F in "cache static content" but requests go from 55 to 2 in repeat view
10-09-2015, 06:59 PM
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RE: Magic? F in "cache static content" but requests go from 55 to 2 in repea...
Thank you for taking the time to personally answer my question, Pat! And many thanks for giving us Webpagetest. I have used it for years; it is such an amazing tool.

(10-09-2015 05:23 AM)pmeenan Wrote:  When there is no expires header the browser can use heuristics based on last-modified to decide how long to cache it for (most modern browsers do). That's why you don't see them re-requested.
That makes a lot of sense - thank you for the explanation!

(10-09-2015 05:23 AM)pmeenan Wrote:  You can grab a tcpdump to be positive but WPT captures the data from the wire so I'm fairly certain they weren't sent.
I re-checked and you are absolutely correct. I mistakenly looked at the request of a CSS-file for which there is a short expires time set. The images really do not have any expires header.
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RE: Magic? F in "cache static content" but requests go from 55 to 2 in repea... - greenjobs - 10-09-2015 06:59 PM

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