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Are remote images cached server side?
I know that a cached/scaled copy of the images is made, if the image is located on the same server - like:/imagegen.ashx?image=/foobar.jpg&height=120
But what about remote images? Like:/imagegen.ashx?image=http://example.com/foobar.jpg&height=120
Oh dear, this is a late reply, isn't it? So sorry about that! Hope it's still helpful.
Remote images are requested from the remote site and then resized. ImageGen saves the resized image to the local server cache as normal, but the original image that resides on the remote server is not saved locally.
Each request to a remote image will make a request to the remote site, which may be sluggish in some cases due to latency or bandwidth constraints between your webserver (with ImageGen on it) and the remote site (with the remote source image on it). When using remote image requests it is recommended to use ImageGen Professional's client side caching settings in the 'class' section of the imagegen.config file. That way only the initial request hits the remote server and afterward uses the cached image rather for the timeout duration.
Thanks Douglas :) Better late than never ;)
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