Should browsers automatically fetch images when src is dynamically redefined, w/o ajax? <p>I've noticed that when an image source attribute is dynamically changed (in my case, using jQuery), even if the image has never been called/cached by the browser (i.e. not pre-loaded), the browser still fetches it -- and without ajax. This has been working for me in all 5 major browsers (ie7+).</p> <p>Question: Is this a formally standardized behavior that I could rely on, indefinitely?</p>