Cache busting

Vote:
 

We have noticed that images uploaded via the CMS are served with an Expires header. Currently we use the default value of 12 hours. We have encountered a problem where an Editor changes and image but re-uploads it with the same name. 

This means the browser does not re-request the asset. The ETag does not change. 

Is it possible to append some hash or GUID to Episerver images so that they have a unique name on each change? 

#173913
Jan 12, 2017 15:18
Vote:
 

We use Mads Kristensen approach (fingerprint) for bursting cache for static client side resources - http://madskristensen.net/post/cache-busting-in-aspnet

Maybe similar approach could be used for ages as well - like adding query string parameters at the end?! To generate unique query string you can use last modified date from content data..

Not sure if that's the best approach tho

#174362
Jan 25, 2017 8:13
Vote:
 

Thanks Valdis! It worked. 

#175173
Feb 14, 2017 14:22
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