I generally have two images in my APL, the background and an overlaid image showing the information linked to the response speech. These images are generated on-the-fly from a server I run on AWS to match the information being requested, and are time and location sensitive.
What I have noticed is that following the initial request and response I see multiple following requests for the images. Sometimes there are ten or more extra requests for the same image from different IP addresses several minutes later.
Where do these additional requests come from? Is it other devices connected to the user account? Or caching services being used to optimise image loading?
It's not a problem from a processing bandwidth standpoint, but as the information in the image is time sensitive it is concerning that invalid images may be being being cached.
Thanks in advance for any insight anyone can provide.