My web site displays real-time instrumentation using an iFrame that takes content from an FTP server. That content comprises a web page which references two images (which are also on the FTP server).
I have to pull the content from the FTP server - I have no control over its location and cannot easily copy it to a web server as it is updated every 20secs.
The problem is with the two images that the page references. The application that generates those images (over which I have no control) adds a cache-busting query string to their URL (in the form image.jpg?dd/mm/yy). This obviously makes sense as the images change every 20secs but their size may not necessarily change so the cache-buster makes sure they are reloaded.
However, while the images load and reload in Firefox they don't in IE11 - IE11 doesn't seem to like query strings in FTP URLs.
Is this a known issue, and is there a work-around?