I like to collect photographs from the Internet. I have noticed something annoyingly odd when I save the images, though. They seem to download twice:
1- first download when I display the image in the browser window
2- second download happens when I save the file
I noticed this when I happened to have the Download window open while saving. When I hit “Save” a progress bar appears in the Download window, and the progress bar takes about the same length of time to complete as the image took to download the first time.
I mostly notice this with Mozilla-based browsers, but also with others.
Are my browsers really downloading everything twice, or is it just my perception? If it’s really doing it twice, that seems like an awful waste of bandwidth! I figure that the file is already in my disk cache after I’ve displayed it in the browser, so why on earth would the browser need to download it from the server a second time when I save?