image proxy / cache for elkarte 1.1.x
license
o this elkarte addon is subject to the terms of the mozilla public license version 1.1 (the "license"). you can obtain a copy of the license at http://mozilla.org/MPL/1.1/
introduction
when using https connections browsers will not show external images embedded with the [IMG] tag that use http links as they would breach the security of the page.
this addon will serve images embedded with [IMG] tags from your domain through a proxy mechanism. the remote http image is saved to your sites cache directory and served from there. you can choose to do this for all [IMG] tags or just those that would cause “insecure content” warnings when your site is running on https
features
o added as a core feature to allow you to find and enable it easily
o scheduled task to remove images which have not been access in a given period of time
o option to cache all 
files or just those required for proper https validation
o automatically will retry fetching failed images up to 10 times.
o secure proxy mechanisms
o no source edits.
repo/download
repo: https://github.com/Spuds/Elk_Image_Cache
download: https://addons.elkarte.net/enhancement/Image-Proxy.html
Modern, Free, Powerful