Take the 2-minute tour ×  I read this on Wikipedia:  Data URIs
are not separately cached from their containing documents (e.g.
CSS or HTML files) so data is downloaded every time the
containing documents are redownloaded.  Does this mean that my
code is downloaded every single time a page is refreshed or
whenever the user clicks on a navigation link? What can I do to
cache the data-uri's?  ps - i'm just talking about 20 or so
small png files (mostly silk icons but 2 * 16KB files as well)
share|improve this question  1 Answer 1  up vote 10 down vote
accepted  Data URIs are nothing more than text in the form of
Base64-encoded binary data within your HTML and CSS files. So
yes, they will be downloaded as part of your HTML and CSS files
every time they're requested, unless those files are themselves
cached.  If you keep your data URIs to just your stylesheets and
send proper cache headers, caching your data: images together
with your CSS shouldn't pose issues.  share|improve this answer
thanks, I totally get it