you click on a link, does the link get followed? That is the same sort
of
scenario, isn't it?
At least firefox will abort any existing downloads for the current page
when the user clicks a link. But if you're downloading these images in
another tab you might have this problem yeah. Though if it's simply
multiple images the new page will likely get squeezed in between two of
the image downloads.
And there is an important distinction between images being downloaded that
consume connections and a long-lived response that consume a connection.
With normal responses, two connection usually provides a means for
relatively continuous utilization of resources. Most of the time two
connections provide enough requests that the usually the server is
processing a request, or a response is downloading. Either way, something is
being done, and it is quite reasonable for further requests to be queued,
since the server/connection is working to finish the response as fast as
possible within it's capability. On the otherhand, when a long-lived
response is paused indefinitely until a the server has a message to be sent,
there is nothing being done. Nothing is being downloaded, and the server
isn't working on anything, and requests can be queued indefinitely even
though nothing is happening.
Kris