When loading a page with multiple svg images, that differ only by the fragment id at the end, the browser should make a single GET request for all images.
This is a popular technique called SVG Stacks which was first widely publicized by on [http://simurai.com/](http://simurai.com/blog/2012/04/02/svg-stacks/)
Here's an example:
<img src="stack.svg#circ" />
<img src="stack.svg#rect" />
Here's a demo page:
This emerged out of a discussion on StackOverflow here:
Fragment ID's are part of the SVG spec here: