Is there an existing solution that retrieves n-images with a single request? Rather than an individual request for each image?<p>Note: I am familiar with HTTP2 multiplexing.
I think JS libraries such as gif.js and gifplayer.js can display specific frames of a gif. So possibly you could create an animated gif whose frames are your portfolio of images, and so you could retrieve n images using your lone n-frame gif image.
You could do that with blobs and client code...or use mjpeg movies...im not aware of multiple images as such though...itd be worth researching multipart mime types i think