How do I load images one time from the url and next it loads from the cache.

I want to load the assets images for each screen from URL, and save them in cache so next time it doesn't need to download it but would pick from the cache for fast app assets preview.

You can upload images to sprite objects, and they will remain there until you close the game, so you don't need to worry about that.

If you want the images to be saved after closing the game, then you need to additionally save the image data to local storage and then load them from there.

I have already done a similar example, take a look.

github.com/igortyhon/c3example-SpriteFromURL-SaveLocalStorage

I'm doing this in a new project - I had some issues and documented them here:

construct.net/en/forum/construct-3/how-do-i-8/load-multiple-textures-187961

Might be of use?